Convert.ToUInt32 Methode

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::String ^ value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string? value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : string -> uint32

Public Shared Function ToUInt32 (value As String) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die der Zahl in valueentspricht, oder 0 (Null), wenn valuenullist.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel werden die Elemente in einem Zeichenfolgenarray als numerische Zeichenfolgen interpretiert und versucht, sie in nicht signierte ganze Zahlen zu konvertieren.

string[] values = { "One", "1.34e28", "-26.87", "-18", "-6.00",
                    " 0", "137", "1601.9", Int32.MaxValue.ToString() };
uint result;

foreach (string value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value '{1}' is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }
   catch (FormatException) {
      Console.WriteLine("The {0} value '{1}' is not in a recognizable format.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    The String value 'One' is not in a recognizable format.
//    The String value '1.34e28' is not in a recognizable format.
//    The String value '-26.87' is not in a recognizable format.
//    The String value '-18' is outside the range of the UInt32 type.
//    The String value '-6.00' is not in a recognizable format.
//    Converted the String value ' 0' to the UInt32 value 0.
//    Converted the String value '137' to the UInt32 value 137.
//    The String value '1601.9' is not in a recognizable format.
//    Converted the String value '2147483647' to the UInt32 value 2147483647.

let values =
    [| "1603"; "1,603"; "one"; "1.6e03"
       "1.2e-02"; "-1326"; "1074122" |]

for value in values do
    try
        let result = Convert.ToUInt16 value
        printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
    with
    | :? FormatException ->
        printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
    | :? OverflowException ->
        printfn $"{value} is outside the range of the UInt32 type." 
// The example displays the following output:
//    Converted the String value '1603' to the UInt32 value 1603.
//    The String value 1,603 is not in a recognizable format.
//    The String value one is not in a recognizable format.
//    The String value 1.6e03 is not in a recognizable format.
//    The String value 1.2e-02 is not in a recognizable format.
//    -1326 is outside the range of the UInt32 type.
//    1074122 is outside the range of the UInt32 type.

Dim values() As String = { "One", "1.34e28", "-26.87", "-18", "-6.00", _
                           " 0", "137", "1601.9", Int32.MaxValue.ToString() }
Dim result As UInteger

For Each value As String In values
   Try
      result = Convert.ToUInt32(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        value.GetType().Name, value)
   Catch e As FormatException
      Console.WriteLine("The {0} value '{1}' is not in a recognizable format.", _
                        value.GetType().Name, value)
   End Try
Next
' The example displays the following output:
'    The String value 'One' is not in a recognizable format.
'    The String value '1.34e28' is not in a recognizable format.
'    The String value '-26.87' is not in a recognizable format.
'    The String value -18 is outside the range of the UInt32 type.
'    The String value '-6.00' is not in a recognizable format.
'    Converted the String value ' 0' to the UInt32 value 0.
'    Converted the String value '137' to the UInt32 value 137.
'    The String value '1601.9' is not in a recognizable format.
'    Converted the String value '2147483647' to the UInt32 value 2147483647.

Hinweise

Die Verwendung der ToUInt32(String)-Methode entspricht dem Übergeben von value an die UInt32.Parse(String)-Methode. value wird mithilfe der Formatierungskonventionen der aktuellen Kultur interpretiert.

Wenn Sie eine Ausnahme lieber nicht behandeln möchten, wenn die Konvertierung fehlschlägt, können Sie stattdessen die UInt32.TryParse-Methode aufrufen. Es wird ein Boolean Wert zurückgegeben, der angibt, ob die Konvertierung erfolgreich war oder fehlgeschlagen ist.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::UInt64 value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (ulong value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : uint64 -> uint32

Public Shared Function ToUInt32 (value As ULong) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem nicht signierten ganzzahligen Array in einen ganzzahligen Wert ohne Vorzeichen zu konvertieren.

ulong[] numbers = { UInt64.MinValue, 121, 340, UInt64.MaxValue };
uint result;
foreach (ulong number in numbers)
{
   try {
      result = Convert.ToUInt32(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    Converted the UInt64 value 0 to the UInt32 value 0.
//    Converted the UInt64 value 121 to the UInt32 value 121.
//    Converted the UInt64 value 340 to the UInt32 value 340.
//    The UInt64 value 18446744073709551615 is outside the range of the UInt32 type.

let numbers = [| UInt64.MinValue; 121uL; 340uL; UInt64.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt32 type."
// The example displays the following output:
//    Converted the UInt64 value '0' to the UInt32 value 0.
//    Converted the UInt64 value '121' to the UInt32 value 121.
//    Converted the UInt64 value '340' to the UInt32 value 340.
//    The UInt64 value 18446744073709551615 is outside the range of the UInt32 type.

Dim numbers() As ULong = { UInt64.MinValue, 121, 340, UInt64.MaxValue }
Dim result As UInteger

For Each number As ULong In numbers
   Try
      result = Convert.ToUInt32(number)
      Console.WriteLine("Converted the {0} value {1} to a {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    Converted the UInt64 value 0 to a UInt32 value 0.
'    Converted the UInt64 value 121 to a UInt32 value 121.
'    Converted the UInt64 value 340 to a UInt32 value 340.
'    The UInt64 value 18446744073709551615 is outside the range of the UInt32 type.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::UInt16 value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (ushort value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : uint16 -> uint32

Public Shared Function ToUInt32 (value As UShort) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Beispiele

Im folgenden Beispiel werden jedes Element in einem nicht signierten ganzzahligen Array mit 16 Bit in einen ganzzahligen Wert ohne Vorzeichen konvertiert.

ushort[] numbers = { UInt16.MinValue, 121, 340, UInt16.MaxValue };
uint result;
foreach (ushort number in numbers)
{
   result = Convert.ToUInt32(number);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                     number.GetType().Name, number,
                     result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the UInt16 value 0 to the UInt32 value 0.
//    Converted the UInt16 value 121 to the UInt32 value 121.
//    Converted the UInt16 value 340 to the UInt32 value 340.
//    Converted the UInt16 value 65535 to the UInt32 value 65535.

let numbers = [| UInt16.MinValue; 121us; 340us; UInt16.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt32 type."
                        
// The example displays the following output:
//    Converted the UInt16 value '0' to the UInt32 value 0.
//    Converted the UInt16 value '121' to the UInt32 value 121.
//    Converted the UInt16 value '340' to the UInt32 value 340.
//    The UInt16 value 4294967295 is outside the range of the UInt32 type.

Dim numbers() As UShort = { UInt16.MinValue, 121, 340, UInt16.MaxValue }
Dim result As UInteger

For Each number As UShort In numbers
   result = Convert.ToUInt32(number)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                     number.GetType().Name, number, _
                     result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the UInt16 value 0 to the UInt32 value 0.
'    Converted the UInt16 value 121 to the UInt32 value 121.
'    Converted the UInt16 value 340 to the UInt32 value 340.
'    Converted the UInt16 value 65535 to the UInt32 value 65535.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::UInt32 value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (uint value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : uint32 -> uint32

Public Shared Function ToUInt32 (value As UInteger) As UInteger

Parameter

Gibt zurück

value wird unverändert zurückgegeben.

Attribute

CLSCompliantAttribute

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(DateTime value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (DateTime value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : DateTime -> uint32

Public Shared Function ToUInt32 (value As DateTime) As UInteger

Parameter

Gibt zurück

Diese Konvertierung wird nicht unterstützt. Es wird kein Wert zurückgegeben.

Attribute

CLSCompliantAttribute

Ausnahmen

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::String ^ value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string value, IFormatProvider provider);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string? value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToUInt32 : string * IFormatProvider -> uint32

Public Shared Function ToUInt32 (value As String, provider As IFormatProvider) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die der Zahl in valueentspricht, oder 0 (Null), wenn valuenullist.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird ein benutzerdefiniertes NumberFormatInfo -Objekt definiert, das die Zeichenfolge "pos" als positives Zeichen und die Zeichenfolge "neg" als negatives Zeichen erkennt. Anschließend wird versucht, jedes Element eines numerischen Zeichenfolgenarrays mithilfe dieses Anbieters und des NumberFormatInfo Anbieters für die invariante Kultur in eine ganze Zahl zu konvertieren.

using System;
using System.Globalization;

public class Class1
{
   public static void Main()
   {
      // Create a NumberFormatInfo object and set several of its
      // properties that apply to numbers.
      NumberFormatInfo provider = new NumberFormatInfo();
      provider.PositiveSign = "pos ";
      provider.NegativeSign = "neg ";

      // Define an array of numeric strings.
      string[] values = { "123456789", "+123456789", "pos 123456789",
                          "123456789.", "123,456,789",  "4294967295",
                          "4294967296", "-1", "neg 1" };

      foreach (string value in values)
      {
         Console.Write("{0,-20} -->", value);
         try {
            Console.WriteLine("{0,20}", Convert.ToUInt32(value, provider));
         }
         catch (FormatException) {
            Console.WriteLine("{0,20}", "Bad Format");
         }
         catch (OverflowException) {
            Console.WriteLine("{0,20}", "Numeric Overflow");
         }
      }
   }
}
// The example displays the following output:
//       123456789            -->           123456789
//       +123456789           -->          Bad Format
//       pos 123456789        -->           123456789
//       123456789.           -->          Bad Format
//       123,456,789          -->          Bad Format
//       4294967295           -->          4294967295
//       4294967296           -->    Numeric Overflow
//       -1                   -->          Bad Format
//       neg 1                -->    Numeric Overflow

open System
open System.Globalization

// Create a NumberFormatInfo object and set several of its
// properties that apply to numbers.
let provider = NumberFormatInfo()
provider.PositiveSign <- "pos "
provider.NegativeSign <- "neg "

// Define an array of numeric strings.
let values =
    [| "123456789"; "+123456789"; "pos 123456789"
       "123456789."; "123,456,789"; "4294967295"
       "4294967296"; "-1"; "neg 1" |]

for value in values do
    printf $"{value,-20} -->"
    
    try
        printfn $"{Convert.ToUInt32(value, provider),20}"
    with
    | :? FormatException ->
        printfn "%20s" "Bad Format"
    | :? OverflowException ->
        printfn "%20s" "Numeric Overflow"
// The example displays the following output:
//       123456789            -->           123456789
//       +123456789           -->          Bad Format
//       pos 123456789        -->           123456789
//       123456789.           -->          Bad Format
//       123,456,789          -->          Bad Format
//       4294967295           -->          4294967295
//       4294967296           -->    Numeric Overflow
//       -1                   -->          Bad Format
//       neg 1                -->    Numeric Overflow

Imports System.Globalization

Module Example
   Public Sub Main()
      ' Create a NumberFormatInfo object and set several of its
      ' properties that apply to numbers.
      Dim provider As New NumberFormatInfo() 
      provider.PositiveSign = "pos "
      provider.NegativeSign = "neg "

      ' Define an array of numeric strings.
      Dim values() As String = { "123456789", "+123456789", "pos 123456789", _
                                 "123456789.", "123,456,789",  "4294967295", _
                                 "4294967296", "-1", "neg 1" }

      For Each value As String In values
         Console.Write("{0,-20} -->", value)
         Try
            Console.WriteLine("{0,20}", Convert.ToUInt32(value, provider))
         Catch e As FormatException
            Console.WriteLine("{0,20}", "Bad Format")
         Catch e As OverflowException
            Console.WriteLine("{0,20}", "Numeric Overflow")
         End Try   
      Next
    End Sub 
End Module 
' The example displays the following output:
'       123456789            -->           123456789
'       +123456789           -->          Bad Format
'       pos 123456789        -->           123456789
'       123456789.           -->          Bad Format
'       123,456,789          -->          Bad Format
'       4294967295           -->          4294967295
'       4294967296           -->    Numeric Overflow
'       -1                   -->          Bad Format
'       neg 1                -->    Numeric Overflow

Hinweise

Der Rückgabewert ist das Ergebnis des Aufrufens von UInt32.Parse für value.

provider ist eine IFormatProvider Instanz, die ein NumberFormatInfo-Objekt abruft. Das NumberFormatInfo-Objekt stellt kulturspezifische Informationen zum Format von valuebereit. Wenn providernullist, wird die NumberFormatInfo für die aktuelle Kultur verwendet.

Wenn Sie eine Ausnahme lieber nicht behandeln möchten, wenn die Konvertierung fehlschlägt, können Sie stattdessen die UInt32.TryParse-Methode aufrufen. Es wird ein Boolean Wert zurückgegeben, der angibt, ob die Konvertierung erfolgreich war oder fehlgeschlagen ist.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::String ^ value, int fromBase);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string value, int fromBase);

[System.CLSCompliant(false)]
public static uint ToUInt32 (string? value, int fromBase);

[<System.CLSCompliant(false)>]
static member ToUInt32 : string * int -> uint32

Public Shared Function ToUInt32 (value As String, fromBase As Integer) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die der Zahl in valueentspricht, oder 0 (Null), wenn valuenullist.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem Array numerischer Zeichenfolgen als Hexadezimalwert zu interpretieren und in eine nicht signierte ganze Zahl zu konvertieren.

using System;

public class Example
{
   public static void Main()
   {
      string[] hexStrings = { "80000000", "0FFFFFFF", "F0000000", "00A3000", "D",
                              "-13", "9AC61", "GAD", "FFFFFFFFFF" };

      foreach (string hexString in hexStrings)
      {
         Console.Write("{0,-12}  -->  ", hexString);
         try {
            uint number = Convert.ToUInt32(hexString, 16);
            Console.WriteLine("{0,18:N0}", number);
         }
         catch (FormatException) {
            Console.WriteLine("{0,18}", "Bad Format");
         }
         catch (OverflowException)
         {
            Console.WriteLine("{0,18}", "Numeric Overflow");
         }
         catch (ArgumentException) {
            Console.WriteLine("{0,18}", "Invalid in Base 16");
         }
      }
   }
}
// The example displays the following output:
//       80000000      -->       2,147,483,648
//       0FFFFFFF      -->         268,435,455
//       F0000000      -->       4,026,531,840
//       00A3000       -->             667,648
//       D             -->                  13
//       -13           -->  Invalid in Base 16
//       9AC61         -->             633,953
//       GAD           -->          Bad Format
//       FFFFFFFFFF    -->    Numeric Overflow

open System

let hexStrings =
    [| "80000000"; "0FFFFFFF"; "F0000000"; "00A3000"
       "D"; "-13"; "9AC61"; "GAD"; "FFFFFFFFFF" |]

for hexString in hexStrings do
    printf $"{hexString,-12}  -->  "
    try
        let number = Convert.ToUInt32(hexString, 16)
        printfn $"{number,18:N0}"
    with
    | :? FormatException ->
        printfn "%18s" "Bad Format"
    | :? OverflowException ->
        printfn "%18s" "Numeric Overflow"
    | :? ArgumentException ->
        printfn "%18s" "Invalid in Base 16"
// The example displays the following output:
//       80000000      -->       2,147,483,648
//       0FFFFFFF      -->         268,435,455
//       F0000000      -->       4,026,531,840
//       00A3000       -->             667,648
//       D             -->                  13
//       -13           -->  Invalid in Base 16
//       9AC61         -->             633,953
//       GAD           -->          Bad Format
//       FFFFFFFFFF    -->    Numeric Overflow

Module Example
   Public Sub Main()
      Dim hexStrings() As String = { "80000000", "0FFFFFFF", "F0000000", "00A3000", "D", _
                                     "-13", "9AC61", "GAD", "FFFFFFFFFF" }
      For Each hexString As String In hexStrings
         Console.Write("{0,-12}  -->  ", hexString)
         Try
            Dim number As UInteger = Convert.ToUInt32(hexString, 16)
            Console.WriteLine("{0,18:N0}", number)
         Catch e As FormatException
            Console.WriteLine("{0,18}", "Bad Format")
         Catch e As OverflowException
            Console.WriteLine("{0,18}", "Numeric Overflow")
         Catch e As ArgumentException
            Console.WriteLine("{0,18}", "Invalid in Base 16")
         End Try
      Next                                            
   End Sub
End Module
'    ' The example displays the following output:
'    80000000      -->       2,147,483,648
'    0FFFFFFF      -->         268,435,455
'    F0000000      -->       4,026,531,840
'    00A3000       -->             667,648
'    D             -->                  13
'    -13           -->  Invalid in Base 16
'    9AC61         -->             633,953
'    GAD           -->          Bad Format
'    FFFFFFFFFF    -->    Numeric Overflow

Hinweise

Wenn fromBase 16 ist, können Sie der durch den parameter value angegebenen Zahl das Präfix "0x" oder "0X" voranstellen.

Da der datentyp UInt32 nur nicht signierte Werte unterstützt, wird von der ToUInt32(String, Int32)-Methode davon ausgegangen, dass value mit nicht signierter binärer Darstellung ausgedrückt wird. Anders ausgedrückt: Alle 32 Bits werden verwendet, um den numerischen Wert darzustellen, und ein Zeichenbit fehlt. Daher ist es möglich, Code zu schreiben, in dem ein signierter ganzzahliger Wert, der sich außerhalb des Bereichs des UInt32 Datentyps befindet, in einen UInt32 Wert konvertiert wird, ohne dass die Methode eine Ausnahme auslöst. Im folgenden Beispiel werden MinValue in die Hexadezimalzeichenfolgendarstellung konvertiert und anschließend die ToUInt32(String, Int32)-Methode aufgerufen. Statt eine Ausnahme auszuwerfen, zeigt die Methode die Meldung "0x80000000 konvertiert in 2147483648" an.

// Create a hexadecimal value out of range of the UInt32 type.
string value = Convert.ToString(Int32.MinValue, 16);
// Convert it back to a number.
try
{
   UInt32 number = Convert.ToUInt32(value, 16);
   Console.WriteLine("0x{0} converts to {1}.", value, number);
}
catch (OverflowException)
{
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned integer.",
                     value);
}

// Create a hexadecimal value out of range of the UInt32 type.
let value = Convert.ToString(Int32.MinValue, 16)
// Convert it back to a number.
try
    let number = Convert.ToUInt32(value, 16)
    printfn $"0x{value} converts to {number}."
with :? OverflowException ->
    printfn $"Unable to convert '0x{value}' to an unsigned integer."

' Create a hexadecimal value out of range of the UInt32 type.
Dim value As String = Convert.ToString(Integer.MinValue, 16)
' Convert it back to a number.
Try
   Dim number As UInt32 = Convert.ToUInt32(value, 16)
   Console.WriteLine("0x{0} converts to {1}.", value, number)
Catch e As OverflowException
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned integer.", _
                     value)
End Try

Beim Ausführen von binären Vorgängen oder numerischen Konvertierungen liegt es immer in der Verantwortung des Entwicklers, zu überprüfen, ob eine Methode oder ein Operator die entsprechende numerische Darstellung verwendet, um einen bestimmten Wert zu interpretieren. Im folgenden Beispiel wird eine Technik veranschaulicht, mit der sichergestellt wird, dass die Methode bei der Konvertierung einer hexadezimalen Zeichenfolge in einen UInt32 Wert keine binäre Darstellung verwendet, um einen Wert zu interpretieren, der zwei Komplementdarstellungen verwendet. Das Beispiel bestimmt, ob ein Wert eine signierte oder eine nicht signierte ganze Zahl darstellt, während er diesen Wert in seine Zeichenfolgendarstellung konvertiert. Wenn das Beispiel den Wert in einen UInt32-Wert konvertiert, wird überprüft, ob der ursprüngliche Wert eine signierte ganze Zahl war. Wenn ja, und wenn das Bit mit hoher Reihenfolge festgelegt ist (was angibt, dass der ursprüngliche Wert negativ war), löst die Methode eine Ausnahme aus.

// Create a negative hexadecimal value out of range of the UInt32 type.
int sourceNumber = Int32.MinValue;
bool isSigned = Math.Sign((int)sourceNumber.GetType().GetField("MinValue").GetValue(null)) == -1;
string value = Convert.ToString(sourceNumber, 16);
UInt32 targetNumber;
try
{
   targetNumber = Convert.ToUInt32(value, 16);
   if (isSigned && ((targetNumber & 0x80000000) != 0))
      throw new OverflowException();
   else
      Console.WriteLine("0x{0} converts to {1}.", value, targetNumber);
}
catch (OverflowException)
{
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned integer.",
                     value);
}
// Displays the following to the console:
//    Unable to convert '0x80000000' to an unsigned integer.

// Create a negative hexadecimal value out of range of the UInt32 type.
let sourceNumber = Int32.MinValue
let isSigned = sign (sourceNumber.GetType().GetField("MinValue").GetValue null :?> int) = -1
let value = Convert.ToString(sourceNumber, 16)
try
    let targetNumber = Convert.ToUInt32(value, 16)
    if isSigned && targetNumber &&& 0x80000000u <> 0u then
        raise (OverflowException())
    else
        printfn $"0x{value} converts to {targetNumber}."
with :? OverflowException ->
    printfn $"Unable to convert '0x{value}' to an unsigned integer."
// Displays the following to the console:
//    Unable to convert '0x80000000' to an unsigned integer.

' Create a negative hexadecimal value out of range of the UInt32 type.
Dim sourceNumber As Integer = Integer.MinValue
Dim isSigned As Boolean = Math.Sign(sourceNumber.MinValue) = -1
Dim value As String = Convert.ToString(sourceNumber, 16)
Dim targetNumber As UInt32
Try
   targetNumber = Convert.ToUInt32(value, 16)
   If isSigned And ((targetNumber And &H80000000) <> 0) Then
      Throw New OverflowException()
   Else 
      Console.WriteLine("0x{0} converts to {1}.", value, targetNumber)
   End If    
Catch e As OverflowException
   Console.WriteLine("Unable to convert '0x{0}' to an unsigned integer.", _
                     value)
End Try 
' Displays the following to the console:
'    Unable to convert '0x80000000' to an unsigned integer.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(float value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (float value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : single -> uint32

Public Shared Function ToUInt32 (value As Single) As UInteger

Parameter

Gibt zurück

value, gerundet auf die nächste 32-Bit-ganzzahl ohne Vorzeichen. Wenn value zwischen zwei ganzen Zahlen halbwegs liegt, wird die gerade Zahl zurückgegeben; d. h. 4,5 wird in 4 konvertiert, und 5,5 wird in 6 konvertiert.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem Array von Single Werten in eine ganze Zahl ohne Vorzeichen zu konvertieren.

float[] values= { Single.MinValue, -1.38e10f, -1023.299f, -12.98f,
                  0f, 9.113e-16f, 103.919f, 17834.191f, Single.MaxValue };
uint result;

foreach (float value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    The Single value -3.402823E+38 is outside the range of the UInt32 type.
//    The Single value -1.38E+10 is outside the range of the UInt32 type.
//    The Single value -1023.299 is outside the range of the UInt32 type.
//    The Single value -12.98 is outside the range of the UInt32 type.
//    Converted the Single value 0 to the UInt32 value 0.
//    Converted the Single value 9.113E-16 to the UInt32 value 0.
//    Converted the Single value 103.919 to the UInt32 value 104.
//    Converted the Single value 17834.19 to the UInt32 value 17834.
//    The Single value 3.402823E+38 is outside the range of the UInt32 type.

let numbers = 
    [| Single.MinValue; -1.38e10f; -1023.299f; -12.98f
       0f; 9.113e-16f; 103.919f; 17834.191f; Single.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt32 type."
// The example displays the following output:
//    -3.402823E+38 is outside the range of the UInt32 type.
//    -1.38E+10 is outside the range of the UInt32 type.
//    -1023.299 is outside the range of the UInt32 type.
//    -12.98 is outside the range of the UInt32 type.
//    Converted the Single value '0' to the UInt32 value 0.
//    Converted the Single value '9.113E-16' to the UInt32 value 0.
//    Converted the Single value '103.919' to the UInt32 value 104.
//    Converted the Single value '17834.19' to the UInt32 value 17834.
//    3.402823E+38 is outside the range of the UInt32 type.

Dim values() As Single = { Single.MinValue, -1.38e10, -1023.299, -12.98, _
                           0, 9.113e-16, 103.919, 17834.191, Single.MaxValue }
Dim result As UInteger

For Each value As Single In values
   Try
      result = Convert.ToUInt32(value)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        value.GetType().Name, value, result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        value.GetType().Name, value)
   End Try
Next
' The example displays the following output:
'    The Single value -3.402823E+38 is outside the range of the UInt32 type.
'    The Single value -1.38E+10 is outside the range of the UInt32 type.
'    The Single value -1023.299 is outside the range of the UInt32 type.
'    The Single value -12.98 is outside the range of the UInt32 type.
'    Converted the Single value 0 to the UInt32 value 0.
'    Converted the Single value 9.113E-16 to the UInt32 value 0.
'    Converted the Single value 103.919 to the UInt32 value 104.
'    Converted the Single value 17834.19 to the UInt32 value 17834.
'    The Single value 3.402823E+38 is outside the range of the UInt32 type.

Weitere Informationen

• Single
• Round

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::Object ^ value, IFormatProvider ^ provider);

[System.CLSCompliant(false)]
public static uint ToUInt32 (object value, IFormatProvider provider);

[System.CLSCompliant(false)]
public static uint ToUInt32 (object? value, IFormatProvider? provider);

[<System.CLSCompliant(false)>]
static member ToUInt32 : obj * IFormatProvider -> uint32

Public Shared Function ToUInt32 (value As Object, provider As IFormatProvider) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht, oder Null, wenn valuenullist.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird eine HexString Klasse definiert, die die IConvertible Schnittstelle implementiert und für die Zeichenfolgendarstellung von 32-Bit-signierten und nicht signierten 32-Bit-Werten konzipiert ist. Die Klasse enthält eine Sign-Eigenschaft, die das Vorzeichen des Hexadezimalwerts angibt.

using System;
using System.Globalization;
using System.Text.RegularExpressions;

public enum SignBit { Negative=-1, Zero=0, Positive=1 };

public struct HexString : IConvertible
{
   private SignBit signBit;
   private string hexString;

   public SignBit Sign
   {
      set { signBit = value; }
      get { return signBit; }
   }

   public string Value
   {
      set {
         if (value.Trim().Length > 8)
            throw new ArgumentException("The string representation of a 32-bit integer cannot have more than 8 characters.");
         else if (! Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase))
            throw new ArgumentException("The hexadecimal representation of a 32-bit integer contains invalid characters.");
         else
            hexString = value;
      }
      get { return hexString; }
   }

   // IConvertible implementations.
   public TypeCode GetTypeCode()
   {
      return TypeCode.Object;
   }

   public bool ToBoolean(IFormatProvider provider)
   {
      return signBit != SignBit.Zero;
   }

   public byte ToByte(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt32(hexString, 16)));
      else
         try {
            return Byte.Parse(hexString, NumberStyles.HexNumber);
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToUInt32(hexString, 16)), e);
         }
   }

   public char ToChar(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt32(hexString, 16)));

      try {
         ushort codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber);
         return Convert.ToChar(codePoint);
      }
      catch (OverflowException e) {
         throw new OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToUInt32(hexString, 16)), e);
      }
   }

   public DateTime ToDateTime(IFormatProvider provider)
   {
      throw new InvalidCastException("Hexadecimal to DateTime conversion is not supported.");
   }

   public decimal ToDecimal(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
      {
         int hexValue = Int32.Parse(hexString, NumberStyles.HexNumber);
         return Convert.ToDecimal(hexValue);
      }
      else
      {
         uint hexValue = UInt32.Parse(hexString, NumberStyles.HexNumber);
         return Convert.ToDecimal(hexValue);
      }
   }

   public double ToDouble(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToDouble(Int32.Parse(hexString, NumberStyles.HexNumber));
      else
         return Convert.ToDouble(UInt32.Parse(hexString, NumberStyles.HexNumber));
   }

   public short ToInt16(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         try {
            return Convert.ToInt16(Int32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToInt32(hexString, 16)), e);
         }
      else
         try {
            return Convert.ToInt16(UInt32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToUInt32(hexString, 16)), e);
         }
   }

   public int ToInt32(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Int32.Parse(hexString, NumberStyles.HexNumber);
      else
         try {
            return Convert.ToInt32(UInt32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt32(hexString, 16)), e);
         }
   }

   public long ToInt64(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToInt64(Int32.Parse(hexString, NumberStyles.HexNumber));
      else
         return Int64.Parse(hexString, NumberStyles.HexNumber);
   }

   public sbyte ToSByte(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         try {
            return Convert.ToSByte(Int32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
                                                      Int32.Parse(hexString, NumberStyles.HexNumber), e));
         }
      else
         try {
            return Convert.ToSByte(UInt32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is outside the range of the SByte type.",
                                                    UInt32.Parse(hexString, NumberStyles.HexNumber)), e);
         }
   }

   public float ToSingle(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         return Convert.ToSingle(Int32.Parse(hexString, NumberStyles.HexNumber));
      else
         return Convert.ToSingle(UInt32.Parse(hexString, NumberStyles.HexNumber));
   }

   public string ToString(IFormatProvider provider)
   {
      return "0x" + this.hexString;
   }

   public object ToType(Type conversionType, IFormatProvider provider)
   {
      switch (Type.GetTypeCode(conversionType))
      {
         case TypeCode.Boolean:
            return this.ToBoolean(null);
         case TypeCode.Byte:
            return this.ToByte(null);
         case TypeCode.Char:
            return this.ToChar(null);
         case TypeCode.DateTime:
            return this.ToDateTime(null);
         case TypeCode.Decimal:
            return this.ToDecimal(null);
         case TypeCode.Double:
            return this.ToDouble(null);
         case TypeCode.Int16:
            return this.ToInt16(null);
         case TypeCode.Int32:
            return this.ToInt32(null);
         case TypeCode.Int64:
            return this.ToInt64(null);
         case TypeCode.Object:
            if (typeof(HexString).Equals(conversionType))
               return this;
            else
               throw new InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name));
         case TypeCode.SByte:
            return this.ToSByte(null);
         case TypeCode.Single:
            return this.ToSingle(null);
         case TypeCode.String:
            return this.ToString(null);
         case TypeCode.UInt16:
            return this.ToUInt16(null);
         case TypeCode.UInt32:
            return this.ToUInt32(null);
         case TypeCode.UInt64:
            return this.ToUInt64(null);
         default:
            throw new InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name));
      }
   }

   public ushort ToUInt16(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt16 type.",
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)));
      else
         try {
            return Convert.ToUInt16(UInt32.Parse(hexString, NumberStyles.HexNumber));
         }
         catch (OverflowException e) {
            throw new OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt32(hexString, 16)), e);
         }
   }

   public uint ToUInt32(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt32 type.",
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)));
      else
         return Convert.ToUInt32(hexString, 16);
   }

   public ulong ToUInt64(IFormatProvider provider)
   {
      if (signBit == SignBit.Negative)
         throw new OverflowException(String.Format("{0} is outside the range of the UInt64 type.",
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)));
      else
         return Convert.ToUInt64(hexString, 16);
   }
}

open System
open System.Globalization
open System.Text.RegularExpressions

type SignBit =
    | Negative = -1
    | Zero = 0
    | Positive = 1

[<Struct>]
type HexString =
    val mutable private hexString: string

    val mutable Sign: SignBit

    member this.Value
        with get () = this.hexString
        and set (value: string) =
            if value.Trim().Length > 8 then
                invalidArg "value" "The string representation of a 32 bit integer cannot have more than eight characters."
            elif Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase) |> not then
                invalidArg "value" "The hexadecimal representation of a 32-bit integer contains invalid characters."
            else
                this.hexString <- value

    interface IConvertible with
        // IConvertible implementations.
        member _.GetTypeCode() =
            TypeCode.Object

        member this.ToBoolean(provider: IFormatProvider) =
            this.Sign <> SignBit.Zero

        member this.ToByte(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Convert.ToInt32(this.hexString, 16)} is out of range of the Byte type.")
            else
                try
                    Byte.Parse(this.hexString, NumberStyles.HexNumber)
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the Byte type.", e) )

        member this.ToChar(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Convert.ToInt32(this.hexString, 16)} is out of range of the Char type.")

            try
                let codePoint = UInt16.Parse(this.hexString, NumberStyles.HexNumber)
                Convert.ToChar codePoint
            with :? OverflowException as e ->
                raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the Char type.", e) )

        member _.ToDateTime(provider: IFormatProvider) =
            raise (InvalidCastException "Hexadecimal to DateTime conversion is not supported.")

        member this.ToDecimal(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                let hexValue = Int32.Parse(this.hexString, NumberStyles.HexNumber)
                Convert.ToDecimal hexValue
            else
                let hexValue = UInt32.Parse(this.hexString, NumberStyles.HexNumber)
                Convert.ToDecimal hexValue

        member this.ToDouble(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToDouble(Int32.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Convert.ToDouble(UInt32.Parse(this.hexString, NumberStyles.HexNumber))

        member this.ToInt16(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                try
                    Convert.ToInt16(Int32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the Int16 type.", e) )
            else
                try
                    Convert.ToInt16(UInt32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the Int16 type.", e) )

        member this.ToInt32(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Int32.Parse(this.hexString, NumberStyles.HexNumber)
            else
                try
                    Convert.ToInt32(UInt32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the Int32 type.", e) )

        member this.ToInt64(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToInt64(Int32.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Int64.Parse(this.hexString, NumberStyles.HexNumber)

        member this.ToSByte(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                try
                    Convert.ToSByte(Int32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Int32.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e) )
            else
                try
                    Convert.ToSByte(UInt32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{UInt32.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the SByte type.", e) )

        member this.ToSingle(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                Convert.ToSingle(Int32.Parse(this.hexString, NumberStyles.HexNumber))
            else
                Convert.ToSingle(UInt32.Parse(this.hexString, NumberStyles.HexNumber))

        member this.ToString(provider: IFormatProvider) =
            "0x" + this.hexString

        member this.ToType(conversionType: Type, provider: IFormatProvider) =
            let this = this :> IConvertible
            match Type.GetTypeCode conversionType with
            | TypeCode.Boolean ->
                this.ToBoolean null
            | TypeCode.Byte ->
                this.ToByte null
            | TypeCode.Char ->
                this.ToChar null
            | TypeCode.DateTime ->
                this.ToDateTime null
            | TypeCode.Decimal ->
                this.ToDecimal null
            | TypeCode.Double ->
                this.ToDouble null
            | TypeCode.Int16 ->
                this.ToInt16 null
            | TypeCode.Int32 ->
                this.ToInt32 null
            | TypeCode.Int64 ->
                this.ToInt64 null
            | TypeCode.Object ->
                if typeof<HexString>.Equals conversionType then
                    this
                else
                    raise (InvalidCastException $"Conversion to a {conversionType.Name} is not supported.")
            | TypeCode.SByte ->
                this.ToSByte null
            | TypeCode.Single ->
                this.ToSingle null
            | TypeCode.String ->
                this.ToString null
            | TypeCode.UInt16 ->
                this.ToUInt16 null
            | TypeCode.UInt32 ->
                this.ToUInt32 null
            | TypeCode.UInt64 ->
                this.ToUInt64 null
            | _ ->
                    raise (InvalidCastException $"Conversion to {conversionType.Name} is not supported.")

        member this.ToUInt16(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int32.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt16 type.")
            else
                try
                    Convert.ToUInt16(UInt32.Parse(this.hexString, NumberStyles.HexNumber))
                with :? OverflowException as e ->
                    raise (OverflowException($"{Convert.ToInt32(this.hexString, 16)} is out of range of the UInt16 type.", e) )

        member this.ToUInt32(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int32.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt32 type.")
            else
                Convert.ToUInt32(this.hexString, 16)

        member this.ToUInt64(provider: IFormatProvider) =
            if this.Sign = SignBit.Negative then
                raise (OverflowException $"{Int32.Parse(this.hexString, NumberStyles.HexNumber)} is outside the range of the UInt64 type.")
            else
                Convert.ToUInt64(this.hexString, 16)

Imports System.Globalization
Imports System.Text.RegularExpressions

Public Enum SignBit As Integer
   Positive = 1
   Zero = 0
   Negative = -1
End Enum

Public Structure HexString : Implements IConvertible
   Private signBit As SignBit
   Private hexString As String
   
   Public Property Sign As SignBit
      Set
         signBit = value
      End Set
      Get
         Return signBit
      End Get
   End Property
   
   Public Property Value As String
      Set
         If value.Trim().Length > 8 Then
            Throw New ArgumentException("The string representation of a 32-bit integer cannot have more than 8 characters.")
         Else If Not Regex.IsMatch(value, "([0-9,A-F]){1,8}", RegexOptions.IgnoreCase) Then
            Throw New ArgumentException("The hexadecimal representation of a 32-bit integer contains invalid characters.")             
         Else
            hexString = value
         End If   
      End Set
      Get
         Return hexString
      End Get
   End Property
   
   ' IConvertible implementations.
   Public Function GetTypeCode() As TypeCode _
                   Implements IConvertible.GetTypeCode
      Return TypeCode.Object
   End Function
   
   Public Function ToBoolean(provider As IFormatProvider) As Boolean _
                   Implements IConvertible.ToBoolean
      Return signBit <> SignBit.Zero
   End Function 
   
   Public Function ToByte(provider As IFormatProvider) As Byte _
                   Implements IConvertible.ToByte
      If signBit = SignBit.Negative Then
         Throw New OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToInt32(hexString, 16))) 
      Else
         Try
            Return Byte.Parse(hexString, NumberStyles.HexNumber)
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the Byte type.", Convert.ToUInt32(hexString, 16)), e)
         End Try   
      End If       
   End Function
   
   Public Function ToChar(provider As IFormatProvider) As Char _
                   Implements IConvertible.ToChar
      If signBit = SignBit.Negative Then 
         Throw New OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToInt32(hexString, 16)))
      End If
      
      Try
         Dim codePoint As UInt16 = UInt16.Parse(Me.hexString, NumberStyles.HexNumber)
         Return Convert.ToChar(codePoint)
      Catch e As OverflowException
         Throw New OverflowException(String.Format("{0} is out of range of the Char type.", Convert.ToUInt32(hexString, 16)))
      End Try      
   End Function 
   
   Public Function ToDateTime(provider As IFormatProvider) As Date _
                   Implements IConvertible.ToDateTime
      Throw New InvalidCastException("Hexadecimal to DateTime conversion is not supported.")
   End Function
   
   Public Function ToDecimal(provider As IFormatProvider) As Decimal _
                   Implements IConvertible.ToDecimal
      If signBit = SignBit.Negative Then
         Dim hexValue As Integer = Int32.Parse(hexString, NumberStyles.HexNumber)
         Return Convert.ToDecimal(hexValue)
      Else
         Dim hexValue As UInteger = UInt32.Parse(hexString, NumberStyles.HexNumber)
         Return Convert.ToDecimal(hexValue)
      End If
   End Function
   
   Public Function ToDouble(provider As IFormatProvider) As Double _
                   Implements IConvertible.ToDouble
      If signBit = SignBit.Negative Then
         Return Convert.ToDouble(Int32.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Convert.ToDouble(UInt32.Parse(hexString, NumberStyles.HexNumber))
      End If   
   End Function   
   
   Public Function ToInt16(provider As IFormatProvider) As Int16 _
                   Implements IConvertible.ToInt16
      If signBit = SignBit.Negative Then
         Try
            Return Convert.ToInt16(Int32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToInt32(hexString, 16)), e)
         End Try
      Else
         Try
            Return Convert.ToInt16(UInt32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the Int16 type.", Convert.ToUInt32(hexString, 16)), e)
         End Try
      End If   
   End Function
   
   Public Function ToInt32(provider As IFormatProvider) As Int32 _
                   Implements IConvertible.ToInt32
      If signBit = SignBit.Negative Then
         Return Int32.Parse(hexString, NumberStyles.HexNumber)
      Else
         Try
            Return Convert.ToInt32(UInt32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the Int32 type.", Convert.ToUInt32(hexString, 16)), e)
         End Try   
      End If   
   End Function
   
   Public Function ToInt64(provider As IFormatProvider) As Int64 _
                   Implements IConvertible.ToInt64
      If signBit = SignBit.Negative Then
         Return Convert.ToInt64(Int32.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Int64.Parse(hexString, NumberStyles.HexNumber)
      End If   
   End Function
   
   Public Function ToSByte(provider As IFormatProvider) As SByte _
                   Implements IConvertible.ToSByte
      If signBit = SignBit.Negative Then
         Try
            Return Convert.ToSByte(Int32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
                                                      Int32.Parse(hexString, NumberStyles.HexNumber), e))
         End Try
      Else
         Try
            Return Convert.ToSByte(UInt32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is outside the range of the SByte type.", _
                                                    UInt32.Parse(hexString, NumberStyles.HexNumber)), e)
         End Try   
      End If
   End Function

   Public Function ToSingle(provider As IFormatProvider) As Single _
                   Implements IConvertible.ToSingle
      If signBit = SignBit.Negative Then
         Return Convert.ToSingle(Int32.Parse(hexString, NumberStyles.HexNumber))
      Else
         Return Convert.ToSingle(UInt32.Parse(hexString, NumberStyles.HexNumber))
      End If   
   End Function

   Public Overloads Function ToString(provider As IFormatProvider) As String _
                   Implements IConvertible.ToString
      Return "0x" & Me.hexString
   End Function
   
   Public Function ToType(conversionType As Type, provider As IFormatProvider) As Object _
                   Implements IConvertible.ToType
      Select Case Type.GetTypeCode(conversionType)
         Case TypeCode.Boolean 
            Return Me.ToBoolean(Nothing)
         Case TypeCode.Byte
            Return Me.ToByte(Nothing)
         Case TypeCode.Char
            Return Me.ToChar(Nothing)
         Case TypeCode.DateTime
            Return Me.ToDateTime(Nothing)
         Case TypeCode.Decimal
            Return Me.ToDecimal(Nothing)
         Case TypeCode.Double
            Return Me.ToDouble(Nothing)
         Case TypeCode.Int16
            Return Me.ToInt16(Nothing)
         Case TypeCode.Int32
            Return Me.ToInt32(Nothing)
         Case TypeCode.Int64
            Return Me.ToInt64(Nothing)
         Case TypeCode.Object
            If GetType(HexString).Equals(conversionType) Then
               Return Me
            Else
               Throw New InvalidCastException(String.Format("Conversion to a {0} is not supported.", conversionType.Name))
            End If 
         Case TypeCode.SByte
            Return Me.ToSByte(Nothing)
         Case TypeCode.Single
            Return Me.ToSingle(Nothing)
         Case TypeCode.String
            Return Me.ToString(Nothing)
         Case TypeCode.UInt16
            Return Me.ToUInt16(Nothing)
         Case TypeCode.UInt32
            Return Me.ToUInt32(Nothing)
         Case TypeCode.UInt64
            Return Me.ToUInt64(Nothing)   
         Case Else
            Throw New InvalidCastException(String.Format("Conversion to {0} is not supported.", conversionType.Name))   
      End Select
   End Function
   
   Public Function ToUInt16(provider As IFormatProvider) As UInt16 _
                   Implements IConvertible.ToUInt16
      If signBit = SignBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt16 type.", _
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Try
            Return Convert.ToUInt16(UInt32.Parse(hexString, NumberStyles.HexNumber))
         Catch e As OverflowException
            Throw New OverflowException(String.Format("{0} is out of range of the UInt16 type.", Convert.ToUInt32(hexString, 16)), e)
         End Try            
      End If   
   End Function

   Public Function ToUInt32(provider As IFormatProvider) As UInt32 _
                   Implements IConvertible.ToUInt32
      If signBit = SignBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt32 type.", _
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Return Convert.ToUInt32(hexString, 16)
      End If   
   End Function
   
   Public Function ToUInt64(provider As IFormatProvider) As UInt64 _
                   Implements IConvertible.ToUInt64
      If signBit = SignBit.Negative Then
         Throw New OverflowException(String.Format("{0} is outside the range of the UInt64 type.", _
                                                   Int32.Parse(hexString, NumberStyles.HexNumber)))
      Else
         Return Convert.ToUInt64(hexString, 16)
      End If   
   End Function
   
End Structure

Das folgende Beispiel zeigt, dass ein Aufruf der ToUInt32(Object, IFormatProvider)-Methode, die ein HexString-Objekt als Parameter übergibt, wiederum die IConvertible.ToUInt32 Implementierung der HexString Klasse aufruft.

public class Example
{
   public static void Main()
   {
      uint positiveValue = 320000000;
      int negativeValue = -1;

      HexString positiveString = new HexString();
      positiveString.Sign = (SignBit) Math.Sign(positiveValue);
      positiveString.Value = positiveValue.ToString("X4");

      HexString negativeString = new HexString();
      negativeString.Sign = (SignBit) Math.Sign(negativeValue);
      negativeString.Value = negativeValue.ToString("X4");

      try {
         Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt32(positiveString));
      }
      catch (OverflowException) {
         Console.WriteLine("{0} is outside the range of the UInt32 type.",
                           Int32.Parse(positiveString.Value, NumberStyles.HexNumber));
      }

      try {
         Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt32(negativeString));
      }
      catch (OverflowException) {
         Console.WriteLine("{0} is outside the range of the UInt32 type.",
                           Int32.Parse(negativeString.Value, NumberStyles.HexNumber));
      }
   }
}
// The example dosplays the following output:
//       0x1312D000 converts to 320000000.
//       -1 is outside the range of the UInt32 type.

let positiveValue = 320000000u
let negativeValue = -1

let mutable positiveString = HexString()
positiveString.Sign <- Math.Sign positiveValue |> enum
positiveString.Value <- positiveValue.ToString "X4"

let mutable negativeString = HexString()
negativeString.Sign <- sign negativeValue |> enum
negativeString.Value <- negativeValue.ToString "X4"

try
    printfn $"0x{positiveString.Value} converts to {Convert.ToUInt32 positiveString}."
with :? OverflowException ->
    printfn $"{Int32.Parse(positiveString.Value, NumberStyles.HexNumber)} is outside the range of the UInt32 type."

try
    printfn $"0x{negativeString.Value} converts to {Convert.ToUInt32 negativeString}."
with :? OverflowException ->
    printfn $"{Int32.Parse(negativeString.Value, NumberStyles.HexNumber)} is outside the range of the UInt32 type."
// The example dosplays the following output:
//       0x1312D000 converts to 320000000.
//       -1 is outside the range of the UInt32 type.

Module Example
   Public Sub Main()
      Dim positiveValue As UInt32 = 320000000
      Dim negativeValue As Int32 = -1
      
      
      Dim positiveString As New HexString()
      positiveString.Sign = CType(Math.Sign(positiveValue), SignBit)
      positiveString.Value = positiveValue.ToString("X4")
      
      Dim negativeString As New HexString()
      negativeString.Sign = CType(Math.Sign(negativeValue), SignBit)
      negativeString.Value = negativeValue.ToString("X4")
      
      Try
         Console.WriteLine("0x{0} converts to {1}.", positiveString.Value, Convert.ToUInt32(positiveString))
      Catch e As OverflowException
         Console.WriteLine("{0} is outside the range of the UInt32 type.", _
                           Int32.Parse(positiveString.Value, NumberStyles.HexNumber))
      End Try

      Try
         Console.WriteLine("0x{0} converts to {1}.", negativeString.Value, Convert.ToUInt32(negativeString))
      Catch e As OverflowException
         Console.WriteLine("{0} is outside the range of the UInt32 type.", _
                           Int32.Parse(negativeString.Value, NumberStyles.HexNumber))
      End Try   
   End Sub
End Module
' The example dosplays the following output:
'       0x1312D000 converts to 320000000.
'       -1 is outside the range of the UInt32 type.

Hinweise

Der Rückgabewert ist das Ergebnis des Aufrufs der IConvertible.ToUInt32 Methode des zugrunde liegenden Typs von value.

provider ermöglicht es dem Benutzer, kulturspezifische Konvertierungsinformationen über den Inhalt valueanzugeben. Wenn value z. B. eine String ist, die eine Zahl darstellt, kann provider kulturspezifische Informationen über die Zum Darstellen dieser Zahl verwendete Notation bereitstellen.

Die Basistypen ignorieren provider; Der Parameter kann jedoch verwendet werden, wenn value ein benutzerdefinierter Typ ist, der die IConvertible Schnittstelle implementiert.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::SByte value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (sbyte value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : sbyte -> uint32

Public Shared Function ToUInt32 (value As SByte) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem signierten Bytearray in eine nicht signierte ganze Zahl zu konvertieren.

sbyte[] numbers = { SByte.MinValue, -1, 0, 10, SByte.MaxValue };
uint result;

foreach (sbyte number in numbers)
{
   try {
      result = Convert.ToUInt32(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The SByte value -128 is outside the range of the UInt32 type.
//    The SByte value -1 is outside the range of the UInt32 type.
//    Converted the SByte value 0 to the UInt32 value 0.
//    Converted the SByte value 10 to the UInt32 value 10.
//    Converted the SByte value 127 to the UInt32 value 127.

let numbers = [| SByte.MinValue; -1y; 0y; 10y; SByte.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt32 type."
// The example displays the following output:
//    -128 is outside the range of the UInt32 type.
//    -1 is outside the range of the UInt32 type.
//    Converted the SByte value '0' to the UInt32 value 0.
//    Converted the SByte value '10' to the UInt32 value 10.
//    Converted the SByte value '127' to the UInt32 value 127.

Dim numbers() As SByte = { SByte.MinValue, -1, 0, 10, SByte.MaxValue }
Dim result As UInteger

For Each number As SByte In numbers
   Try
      result = Convert.ToUInt32(number)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The SByte value -128 is outside the range of the UInt32 type.
'    The SByte value -1 is outside the range of the UInt32 type.
'    Converted the SByte value 0 to the UInt32 value 0.
'    Converted the SByte value 10 to the UInt32 value 10.
'    Converted the SByte value 127 to the UInt32 value 127.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(char value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (char value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : char -> uint32

Public Shared Function ToUInt32 (value As Char) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Beispiele

Im folgenden Beispiel werden die einzelnen Elemente in einem Zeichenarray in eine nicht signierte ganze Zahl konvertiert.

char[] chars = { 'a', 'z', '\u0007', '\u03FF',
                 '\u7FFF', '\uFFFE' };
uint result;

foreach (char ch in chars)
{
   result = Convert.ToUInt32(ch);
   Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                     ch.GetType().Name, ch,
                     result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the Char value 'a' to the UInt32 value 97.
//    Converted the Char value 'z' to the UInt32 value 122.
//    Converted the Char value '' to the UInt32 value 7.
//    Converted the Char value 'Ͽ' to the UInt32 value 1023.
//    Converted the Char value '翿' to the UInt32 value 32767.
//    Converted the Char value '' to the UInt32 value 65534.

let chars = 
    [| 'a'; 'z'; '\u0007'; '\u03FF'; '\u7FFF'; '\uFFFE' |]

for ch in chars do
    try
        let result = Convert.ToUInt16 ch
        printfn $"Converted the {ch.GetType().Name} value '{ch}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"Unable to convert u+{int ch:X4} to a UInt16."
// The example displays the following output:
//    Converted the Char value 'a' to the UInt32 value 97.
//    Converted the Char value 'z' to the UInt32 value 122.
//    Converted the Char value '' to the UInt32 value 7.
//    Converted the Char value '?' to the UInt32 value 1023.
//    Converted the Char value '?' to the UInt32 value 32767.
//    Converted the Char value '?' to the UInt32 value 65534.

Dim chars() As Char = { "a"c, "z"c, ChrW(7), ChrW(1023), _
                        ChrW(Short.MaxValue), ChrW(&hFFFE) }
Dim result As UInteger

For Each ch As Char in chars
   result = Convert.ToUInt32(ch)
   Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                     ch.GetType().Name, ch, _
                     result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the Char value 'a' to the UInt32 value 97.
'    Converted the Char value 'z' to the UInt32 value 122.
'    Converted the Char value '' to the UInt32 value 7.
'    Converted the Char value 'Ͽ' to the UInt32 value 1023.
'    Converted the Char value '翿' to the UInt32 value 32767.
'    Converted the Char value '' to the UInt32 value 65534.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(long value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (long value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : int64 -> uint32

Public Shared Function ToUInt32 (value As Long) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem langen ganzzahligen Array in eine nicht signierte ganze Zahl zu konvertieren.

long[] numbers = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue };
uint result;
foreach (long number in numbers)
{
   try {
      result = Convert.ToUInt32(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int64 value -9223372036854775808 is outside the range of the UInt32 type.
//    The Int64 value -1 is outside the range of the UInt32 type.
//    Converted the Int64 value 0 to the UInt32 value 0.
//    Converted the Int64 value 121 to the UInt32 value 121.
//    Converted the Int64 value 340 to the UInt32 value 340.
//    The Int64 value 9223372036854775807 is outside the range of the UInt32 type.

let numbers = [| Int64.MinValue; -1; 0; 121; 340; Int64.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn "The {number.GetType().Name} value {number} is outside the range of the UInt32 type."
// The example displays the following output:
//    The Int64 value -9223372036854775808 is outside the range of the UInt32 type.
//    The Int64 value -1 is outside the range of the UInt32 type.
//    Converted the Int64 value '0' to the UInt32 value 0.
//    Converted the Int64 value '121' to the UInt32 value 121.
//    Converted the Int64 value '340' to the UInt32 value 340.
//    The Int64 value 9223372036854775807 is outside the range of the UInt32 type.

Dim numbers() As Long = { Int64.MinValue, -1, 0, 121, 340, Int64.MaxValue }
Dim result As UInteger
For Each number As Long In numbers
   Try
      result = Convert.ToUInt32(number)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int64 value -9223372036854775808 is outside the range of the UInt32 type.
'    The Int64 value -1 is outside the range of the UInt32 type.
'    Converted the Int64 value 0 to the UInt32 value 0.
'    Converted the Int64 value 121 to the UInt32 value 121.
'    Converted the Int64 value 340 to the UInt32 value 340.
'    The Int64 value 9223372036854775807 is outside the range of the UInt32 type.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(int value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (int value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : int -> uint32

Public Shared Function ToUInt32 (value As Integer) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem ganzzahligen Array in eine nicht signierte ganze Zahl zu konvertieren.

int[] numbers = { Int32.MinValue, -1203, 0, 121, 1340, Int32.MaxValue };
uint result;
foreach (int number in numbers)
{
   try {
      result = Convert.ToUInt32(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int32 value -2147483648 is outside the range of the UInt32 type.
//    The Int32 value -1203 is outside the range of the UInt32 type.
//    Converted the Int32 value 0 to the UInt32 value 0.
//    Converted the Int32 value 121 to the UInt32 value 121.
//    Converted the Int32 value 1340 to the UInt32 value 1340.
//    Converted the Int32 value 2147483647 to the UInt32 value 2147483647.

let numbers = [| Int32.MinValue; -1; 0; 121; 340; Int32.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn "The {number.GetType().Name} value {number} is outside the range of the UInt32 type."
                        
// The example displays the following output:
//    The Int32 value -2147483648 is outside the range of the UInt32 type.
//    The Int32 value -1 is outside the range of the UInt32 type.
//    Converted the Int32 value '0' to the UInt32 value 0.
//    Converted the Int32 value '121' to the UInt32 value 121.
//    Converted the Int32 value '340' to the UInt32 value 340.
//    The Int32 value 2147483647 is outside the range of the UInt32 type.

Dim numbers() As Integer = { Int32.MinValue, -1203, 0, 121, 1340, Int32.MaxValue }
Dim result As UInteger
For Each number As Integer In numbers
   Try
      result = Convert.ToUInt32(number)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        number.GetType().Name, number, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int32 value -2147483648 is outside the range of the UInt32 type.
'    The Int32 value -1203 is outside the range of the UInt32 type.
'    Converted the Int32 value 0 to the UInt32 value 0.
'    Converted the Int32 value 121 to the UInt32 value 121.
'    Converted the Int32 value 1340 to the UInt32 value 1340.
'    Converted the Int32 value 2147483647 to the UInt32 value 2147483647.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(short value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (short value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : int16 -> uint32

Public Shared Function ToUInt32 (value As Short) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem 16-Bit-Ganzzahlarray in eine ganze Zahl ohne Vorzeichen zu konvertieren.

short[] numbers= { Int16.MinValue, -1, 0, 121, 340, Int16.MaxValue };
uint result;

foreach (short number in numbers)
{
   try {
      result = Convert.ToUInt32(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                           number.GetType().Name, number,
                           result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    The Int16 value -32768 is outside the range of the UInt32 type.
//    The Int16 value -1 is outside the range of the UInt32 type.
//    Converted the Int16 value 0 to the UInt32 value 0.
//    Converted the Int16 value 121 to the UInt32 value 121.
//    Converted the Int16 value 340 to the UInt32 value 340.
//    Converted the Int16 value 32767 to the UInt32 value 32767.

let numbers = [| Int16.MinValue; -132s; 0s; 121s; 16103s; Int16.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"The {number.GetType().Name} value {number} is outside the range of the UInt32 type."
// The example displays the following output:
//    The Int16 value -32768 is outside the range of the UInt32 type.
//    The Int16 value -132 is outside the range of the UInt32 type.
//    Converted the Int16 value '0' to the UInt32 value 0.
//    Converted the Int16 value '121' to the UInt32 value 121.
//    Converted the Int16 value '16103' to the UInt32 value 16103.
//    Converted the Int16 value '32767' to the UInt32 value 32767.

Dim numbers() As Short = { Int16.MinValue, -1, 0, 121, 340, Int16.MaxValue }
Dim result As UInteger

For Each number As Short In numbers
   Try
      result = Convert.ToUInt32(number)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                           number.GetType().Name, number, _
                           result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        number.GetType().Name, number)
   End Try
Next
' The example displays the following output:
'    The Int16 value -32768 is outside the range of the UInt32 type.
'    The Int16 value -1 is outside the range of the UInt32 type.
'    Converted the Int16 value 0 to the UInt32 value 0.
'    Converted the Int16 value 121 to the UInt32 value 121.
'    Converted the Int16 value 340 to the UInt32 value 340.
'    Converted the Int16 value 32767 to the UInt32 value 32767.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(double value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (double value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : double -> uint32

Public Shared Function ToUInt32 (value As Double) As UInteger

Parameter

Gibt zurück

value, gerundet auf die nächste 32-Bit-ganzzahl ohne Vorzeichen. Wenn value zwischen zwei ganzen Zahlen halbwegs liegt, wird die gerade Zahl zurückgegeben; d. h. 4,5 wird in 4 konvertiert, und 5,5 wird in 6 konvertiert.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem Array von Double Werten in eine ganze Zahl ohne Vorzeichen zu konvertieren.

double[] values= { Double.MinValue, -1.38e10, -1023.299, -12.98,
                   0, 9.113e-16, 103.919, 17834.191, Double.MaxValue };
uint result;

foreach (double value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    The Double value -1.79769313486232E+308 is outside the range of the UInt32 type.
//    The Double value -13800000000 is outside the range of the UInt32 type.
//    The Double value -1023.299 is outside the range of the UInt32 type.
//    The Double value -12.98 is outside the range of the UInt32 type.
//    Converted the Double value '0' to the UInt32 value 0.
//    Converted the Double value '9.113E-16' to the UInt32 value 0.
//    Converted the Double value '103.919' to the UInt32 value 104.
//    Converted the Double value '17834.191' to the UInt32 value 17834.
//    The Double value 1.79769313486232E+308 is outside the range of the UInt32 type.

let numbers = 
    [| Double.MinValue; -1.38e10; -1023.299; -12.98
       0; 9.113e-16; 103.919; 17834.191; Double.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt32 type."
// The example displays the following output:
//    -1.79769313486232E+308 is outside the range of the UInt32 type.
//    -13800000000 is outside the range of the UInt32 type.
//    -1023.299 is outside the range of the UInt32 type.
//    -12.98 is outside the range of the UInt32 type.
//    Converted the Double value '0' to the UInt32 value 0.
//    Converted the Double value '9.113E-16' to the UInt32 value 0.
//    Converted the Double value '103.919' to the UInt32 value 104.
//    Converted the Double value '17834.191' to the UInt32 value 17834.
//    1.79769313486232E+308 is outside the range of the UInt32 type.

Dim values() As Double = { Double.MinValue, -1.38e10, -1023.299, -12.98, _
                           0, 9.113e-16, 103.919, 17834.191, Double.MaxValue }
Dim result As UInteger

For Each value As Double In values
   Try
      result = Convert.ToUInt32(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        value.GetType().Name, value)
   End Try
Next
' The example displays the following output:
'    The Double value -1.79769313486232E+308 is outside the range of the UInt32 type.
'    The Double value -13800000000 is outside the range of the UInt32 type.
'    The Double value -1023.299 is outside the range of the UInt32 type.
'    The Double value -12.98 is outside the range of the UInt32 type.
'    Converted the Double value '0' to the UInt32 value 0.
'    Converted the Double value '9.113E-16' to the UInt32 value 0.
'    Converted the Double value '103.919' to the UInt32 value 104.
'    Converted the Double value '17834.191' to the UInt32 value 17834.
'    The Double value 1.79769313486232E+308 is outside the range of the UInt32 type.

Weitere Informationen

• Double
• Round

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::Decimal value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (decimal value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : decimal -> uint32

Public Shared Function ToUInt32 (value As Decimal) As UInteger

Parameter

Gibt zurück

value, gerundet auf die nächste 32-Bit-ganzzahl ohne Vorzeichen. Wenn value zwischen zwei ganzen Zahlen halbwegs liegt, wird die gerade Zahl zurückgegeben; d. h. 4,5 wird in 4 konvertiert, und 5,5 wird in 6 konvertiert.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem Array von Decimal Werten in eine ganze Zahl ohne Vorzeichen zu konvertieren.

decimal[] values= { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
                    199.55m, 9214.16m, Decimal.MaxValue };
uint result;

foreach (decimal value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    The Decimal value -79228162514264337593543950335 is outside the range of the UInt32 type.
//    The Decimal value -1034.23 is outside the range of the UInt32 type.
//    The Decimal value -12 is outside the range of the UInt32 type.
//    Converted the Decimal value '0' to the UInt32 value 0.
//    Converted the Decimal value '147' to the UInt32 value 147.
//    Converted the Decimal value '199.55' to the UInt32 value 200.
//    Converted the Decimal value '9214.16' to the UInt32 value 9214.
//    The Decimal value 79228162514264337593543950335 is outside the range of the UInt32 type.

let numbers = 
    [| Decimal.MinValue; -1034.23m; -12m; 0m; 147m; 9214.16m; Decimal.MaxValue |]

for number in numbers do
    try
        let result = Convert.ToUInt16 number
        printfn $"Converted the {number.GetType().Name} value '{number}' to the {result.GetType().Name} value {result}."
    with :? OverflowException ->
        printfn $"{number} is outside the range of the UInt32 type."
// The example displays the following output:
//    -79228162514264337593543950335 is outside the range of the UInt32 type.
//    -1034.23 is outside the range of the UInt32 type.
//    -12 is outside the range of the UInt32 type.
//    Converted the Decimal value '0' to the UInt32 value 0.
//    Converted the Decimal value '147' to the UInt32 value 147.
//    Converted the Decimal value '9214.16' to the UInt32 value 9214.
//    79228162514264337593543950335 is outside the range of the UInt32 type.

Dim values() As Decimal = { Decimal.MinValue, -1034.23d, -12d, 0d, 147d, _
                            199.55d, 9214.16d, Decimal.MaxValue }
Dim result As UInteger

For Each value As Decimal In values
   Try
      result = Convert.ToUInt32(value)
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("{0} is outside the range of the UInt32 type.", _
                        value)
   End Try
Next
' The example displays the following output:
'    -79228162514264337593543950335 is outside the range of the UInt32 type.
'    -1034.23 is outside the range of the UInt32 type.
'    -12 is outside the range of the UInt32 type.
'    Converted the Decimal value '0' to the UInt32 value 0.
'    Converted the Decimal value '147' to the UInt32 value 147.
'    Converted the Decimal value '199.55' to the UInt32 value 200.
'    Converted the Decimal value '9214.16' to the UInt32 value 9214.
'    79228162514264337593543950335 is outside the range of the UInt32 type.

Weitere Informationen

• Round

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::Object ^ value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (object value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (object? value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : obj -> uint32

Public Shared Function ToUInt32 (value As Object) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht, oder 0 (Null), wenn valuenullist.

Attribute

CLSCompliantAttribute

Ausnahmen

Beispiele

Im folgenden Beispiel wird versucht, jedes Element in einem Objektarray in eine nicht signierte ganze Zahl zu konvertieren.

object[] values = { true, -12, 163, 935, 'x', new DateTime(2009, 5, 12),
                    "104", "103.0", "-1",
                    "1.00e2", "One", 1.00e2, 16.3e42};
uint result;

foreach (object value in values)
{
   try {
      result = Convert.ToUInt32(value);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value '{1}' is outside the range of the UInt32 type.",
                        value.GetType().Name, value);
   }
   catch (FormatException) {
      Console.WriteLine("The {0} value {1} is not in a recognizable format.",
                        value.GetType().Name, value);
   }
   catch (InvalidCastException) {
      Console.WriteLine("No conversion to a UInt32 exists for the {0} value '{1}'.",
                        value.GetType().Name, value);
   }
}
// The example displays the following output:
//    Converted the Boolean value True to the UInt32 value 1.
//    The Int32 value '-12' is outside the range of the UInt32 type.
//    Converted the Int32 value 163 to the UInt32 value 163.
//    Converted the Int32 value 935 to the UInt32 value 935.
//    Converted the Char value x to the UInt32 value 120.
//    No conversion to a UInt32 exists for the DateTime value '5/12/2009 12:00:00 AM'.
//    Converted the String value 104 to the UInt32 value 104.
//    The String value 103.0 is not in a recognizable format.
//    The String value '-1' is outside the range of the UInt32 type.
//    The String value 1.00e2 is not in a recognizable format.
//    The String value One is not in a recognizable format.
//    Converted the Double value 100 to the UInt32 value 100.
//    The Double value '1.63E+43' is outside the range of the UInt32 type.

let values: obj[] =
    [| true; -12; 163; 935; 'x'; DateTime(2009, 5, 12)
       "104"; "103.0"; "-1"; "1.00e2"; "One"; 1.00e2 |]

for value in values do
    try
        let result = Convert.ToUInt16 value
        printfn $"Converted the {value.GetType().Name} value '{value}' to the {result.GetType().Name} value {result}."
    with 
    | :? OverflowException ->
        printfn $"The {value.GetType().Name} value {value} is outside the range of the UInt32 type."
    | :? FormatException ->
        printfn $"The {value.GetType().Name} value {value} is not in a recognizable format."
    | :? InvalidCastException ->
        printfn $"No conversion to a UInt16 exists for the {value.GetType().Name} value {value}."
// The example displays the following output:
//    Converted the Boolean value 'True' to the UInt32 value 1.
//    The Int32 value -12 is outside the range of the UInt32 type.
//    Converted the Int32 value '163' to the UInt32 value 163.
//    Converted the Int32 value '935' to the UInt32 value 935.
//    Converted the Char value 'x' to the UInt32 value 120.
//    No conversion to a UInt16 exists for the DateTime value 5/12/2009 12:00:00 AM.
//    Converted the String value '104' to the UInt32 value 104.
//    The String value 103.0 is not in a recognizable format.
//    The String value -1 is outside the range of the UInt32 type.
//    The String value 1.00e2 is not in a recognizable format.
//    The String value One is not in a recognizable format.
//    Converted the Double value '100' to the UInt32 value 100.

Dim values() As Object = { True, -12, 163, 935, "x"c, #5/12/2009#, _
                           "104", "103.0", "-1", _
                           "1.00e2", "One", 1.00e2, 16.3e42}
Dim result As UInteger

For Each value As Object In values
   Try
      result = Convert.ToUInt32(value)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the UInt32 type.", _
                        value.GetType().Name, value)
   Catch e As FormatException
      Console.WriteLine("The {0} value {1} is not in a recognizable format.", _
                        value.GetType().Name, value)
   Catch e As InvalidCastException
      Console.WriteLine("No conversion to a UInt32 exists for the {0} value {1}.", _
                        value.GetType().Name, value)

   End Try
Next
' The example displays the following output:
'    Converted the Boolean value True to the UInt32 value 1.
'    The Int32 value -12 is outside the range of the UInt32 type.
'    Converted the Int32 value 163 to the UInt32 value 163.
'    Converted the Int32 value 935 to the UInt32 value 935.
'    Converted the Char value x to the UInt32 value 120.
'    No conversion to a UInt32 exists for the DateTime value 5/12/2009 12:00:00 AM.
'    Converted the String value 104 to the UInt32 value 104.
'    The String value 103.0 is not in a recognizable format.
'    The String value -1 is outside the range of the UInt32 type.
'    The String value 1.00e2 is not in a recognizable format.
'    The String value One is not in a recognizable format.
'    Converted the Double value 100 to the UInt32 value 100.
'    The Double value 1.63E+43 is outside the range of the UInt32 type.

Hinweise

Der Rückgabewert ist das Ergebnis des Aufrufs der IConvertible.ToUInt32 Methode des zugrunde liegenden Typs von value.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(System::Byte value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (byte value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : byte -> uint32

Public Shared Function ToUInt32 (value As Byte) As UInteger

Parameter

Gibt zurück

Eine 32-Bit-ganzzahl ohne Vorzeichen, die valueentspricht.

Attribute

CLSCompliantAttribute

Beispiele

Im folgenden Beispiel werden die einzelnen Elemente in einem Bytearray in eine ganze Zahl ohne Vorzeichen konvertiert.

byte[] bytes = { Byte.MinValue, 14, 122, Byte.MaxValue};
uint result;

foreach (byte byteValue in bytes)
{
   result = Convert.ToUInt32(byteValue);
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                     byteValue.GetType().Name, byteValue,
                     result.GetType().Name, result);
}
// The example displays the following output:
//    Converted the Byte value 0 to the UInt32 value 0.
//    Converted the Byte value 14 to the UInt32 value 14.
//    Converted the Byte value 122 to the UInt32 value 122.
//    Converted the Byte value 255 to the UInt32 value 255.

let bytes = [| Byte.MinValue; 14uy; 122uy; Byte.MaxValue |]

for byteValue in bytes do
    let result = Convert.ToUInt16 byteValue
    printfn $"Converted the {byteValue.GetType().Name} value '{byteValue}' to the {result.GetType().Name} value {result}."
// The example displays the following output:
//       Converted the Byte value '0' to the UInt32 value 0.
//       Converted the Byte value '14' to the UInt32 value 14.
//       Converted the Byte value '122' to the UInt32 value 122.
//       Converted the Byte value '255' to the UInt32 value 255.

Dim bytes() As Byte = { Byte.MinValue, 14, 122, Byte.MaxValue}
Dim result As UInteger

For Each byteValue As Byte In bytes
   result = Convert.ToUInt32(byteValue)
   Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                     byteValue.GetType().Name, byteValue, _
                     result.GetType().Name, result)
Next
' The example displays the following output:
'    Converted the Byte value 0 to the UInt32 value 0.
'    Converted the Byte value 14 to the UInt32 value 14.
'    Converted the Byte value 122 to the UInt32 value 122.
'    Converted the Byte value 255 to the UInt32 value 255.

Quelle:

Convert.cs

Quelle:

Convert.cs

Quelle:

Convert.cs

public:
 static System::UInt32 ToUInt32(bool value);

[System.CLSCompliant(false)]
public static uint ToUInt32 (bool value);

[<System.CLSCompliant(false)>]
static member ToUInt32 : bool -> uint32

Public Shared Function ToUInt32 (value As Boolean) As UInteger

Parameter

Gibt zurück

Die Zahl 1, wenn valuetrueist; andernfalls 0.

Attribute

CLSCompliantAttribute

Beispiele

Im folgenden Beispiel werden die booleschen Werte true und false in ganze Zahlen konvertiert.

bool falseFlag = false;
bool trueFlag = true;

Console.WriteLine("{0} converts to {1}.", falseFlag,
                  Convert.ToUInt32(falseFlag));
Console.WriteLine("{0} converts to {1}.", trueFlag,
                  Convert.ToUInt32(trueFlag));
// The example displays the following output:
//       False converts to 0.
//       True converts to 1.

let falseFlag = false
let trueFlag = true

printfn $"{falseFlag} converts to {Convert.ToInt32 falseFlag}."
printfn $"{trueFlag} converts to {Convert.ToInt32 trueFlag}."
// The example displays the following output:
//       False converts to 0.
//       True converts to 1.

Dim falseFlag As Boolean = False
Dim trueFlag As Boolean = True

Console.WriteLine("{0} converts to {1}.", falseFlag, _
                  Convert.ToUInt32(falseFlag))
Console.WriteLine("{0} converts to {1}.", trueFlag, _
                  Convert.ToUInt32(trueFlag))
' The example displays the following output:
'       False converts to 0.
'       True converts to 1.