RegistryKey.SetValue Método

Source:

RegistryKey.cs

public:
 void SetValue(System::String ^ name, System::Object ^ value);

public void SetValue (string name, object value);

public void SetValue (string? name, object value);

member this.SetValue : string * obj -> unit

Public Sub SetValue (name As String, value As Object)

Parámetros

Excepciones

Ejemplos

En el ejemplo de código siguiente se muestra cómo el SetValue método determina el tipo de datos del Registro cuando establece valores. En el ejemplo se crea una clave de prueba y se agregan valores de distintos tipos de datos a la clave. A continuación, en el ejemplo se leen los pares nombre-valor y se muestran en la consola, utilizando el GetValueKind método para mostrar los tipos de datos del Registro correspondientes.

using namespace System;
using namespace Microsoft::Win32;
int main()
{
   
   // Delete and recreate the test key.
   Registry::CurrentUser->DeleteSubKey( "RegistrySetValueExample", false );
   RegistryKey ^ rk = Registry::CurrentUser->CreateSubKey( "RegistrySetValueExample" );
   
   // Create name/value pairs.
   // Numeric values that cannot be interpreted as DWord (int) values
   // are stored as strings.
   rk->SetValue( "LargeNumberValue1", (long)42 );
   rk->SetValue( "LargeNumberValue2", 42000000000 );
   rk->SetValue( "DWordValue", 42 );
   array<String^>^temp0 = {"One","Two","Three"};
   rk->SetValue( "MultipleStringValue", temp0 );
   array<Byte>^temp1 = {10,43,44,45,14,255};
   rk->SetValue( "BinaryValue", temp1 );
   
   // This overload of SetValue does not support expanding strings. Use
   // the overload that allows you to specify RegistryValueKind.
   rk->SetValue( "StringValue", "The path is %PATH%" );
   
   // Display all the name/value pairs stored in the test key, with
   // the registry data type in parentheses.
   //
   array<String^>^valueNames = rk->GetValueNames();
   System::Collections::IEnumerator^ myEnum = valueNames->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      String^ s = safe_cast<String^>(myEnum->Current);
      RegistryValueKind rvk = rk->GetValueKind( s );
      switch ( rvk )
      {
         case RegistryValueKind::MultiString:
         {
            array<String^>^values = (array<String^>^)rk->GetValue( s );
            Console::Write( "\r\n {0} ({1}) = \"{2}\"", s, rvk, values[ 0 ] );
            for ( int i = 1; i < values->Length; i++ )
            {
               Console::Write( ", \"{0}\"", values[ i ] );

            }
            Console::WriteLine();
            break;
         }
         case RegistryValueKind::Binary:
         {
            array<Byte>^bytes = (array<Byte>^)rk->GetValue( s );
            Console::Write( "\r\n {0} ({1}) = {2:X2}", s, rvk, bytes[ 0 ] );
            for ( int i = 1; i < bytes->Length; i++ )
            {
               
               // Display each byte as two hexadecimal digits.
               Console::Write( " {0:X2}", bytes[ i ] );

            }
            Console::WriteLine();
            break;
         }
         default:
            Console::WriteLine( "\r\n {0} ({1}) = {2}", s, rvk, rk->GetValue( s ) );
            break;
      }
   }
}

using System;
using Microsoft.Win32;

public class Example
{
    public static void Main()
    {
        // Delete and recreate the test key.
        Registry.CurrentUser.DeleteSubKey("RegistrySetValueExample", false);
        RegistryKey rk = Registry.CurrentUser.CreateSubKey("RegistrySetValueExample");

        // Create name/value pairs.

        // Numeric values that cannot be interpreted as DWord (int) values
        // are stored as strings.
        rk.SetValue("LargeNumberValue1", (long) 42);
        rk.SetValue("LargeNumberValue2", 42000000000);

        rk.SetValue("DWordValue", 42);
        rk.SetValue("MultipleStringValue", new string[] {"One", "Two", "Three"});
        rk.SetValue("BinaryValue", new byte[] {10, 43, 44, 45, 14, 255});

        // This overload of SetValue does not support expanding strings. Use
        // the overload that allows you to specify RegistryValueKind.
        rk.SetValue("StringValue", "The path is %PATH%");

        // Display all name/value pairs stored in the test key, with each
        // registry data type in parentheses.
        //
        string[] valueNames = rk.GetValueNames();
        foreach (string s in valueNames)
        {
            RegistryValueKind rvk = rk.GetValueKind(s);
            switch (rvk)
            {
                case RegistryValueKind.MultiString :
                    string[] values = (string[]) rk.GetValue(s);
                    Console.Write("\r\n {0} ({1}) = \"{2}\"", s, rvk, values[0]);
                    for (int i = 1; i < values.Length; i++)
                    {
                        Console.Write(", \"{0}\"", values[i]);
                    }
                    Console.WriteLine();
                    break;

                case RegistryValueKind.Binary :
                    byte[] bytes = (byte[]) rk.GetValue(s);
                    Console.Write("\r\n {0} ({1}) = {2:X2}", s, rvk, bytes[0]);
                    for (int i = 1; i < bytes.Length; i++)
                    {
                        // Display each byte as two hexadecimal digits.
                        Console.Write(" {0:X2}", bytes[i]);
                    }
                    Console.WriteLine();
                    break;

                default :
                    Console.WriteLine("\r\n {0} ({1}) = {2}", s, rvk, rk.GetValue(s));
                    break;
            }
        }
    }
}

Imports Microsoft.Win32

Public Class Example
    Public Shared Sub Main()
        ' Delete and recreate the test key.
        Registry.CurrentUser.DeleteSubKey("RegistrySetValueExample", False)
        Dim rk As RegistryKey = Registry.CurrentUser.CreateSubKey("RegistrySetValueExample")
        
        ' Create name/value pairs.
        ' Numeric values that cannot be interpreted as DWord (int) values
        ' are stored as strings.
        rk.SetValue("LargeNumberValue1", CType(42, Long))
        rk.SetValue("LargeNumberValue2", 42000000000)
        
        rk.SetValue("DWordValue", 42)
        rk.SetValue("MultipleStringValue", New String() {"One", "Two", "Three"})
        rk.SetValue("BinaryValue", New Byte() {10, 43, 44, 45, 14, 255})
        
        ' This overload of SetValue does not support expanding strings. Use
        ' the overload that allows you to specify RegistryValueKind.
        rk.SetValue("StringValue", "The path is %PATH%")
        
        ' Display all name/value pairs stored in the test key, with each
        ' registry data type in parentheses.
        '
        Dim valueNames As String() = rk.GetValueNames()
        Dim s As String
        For Each s In  valueNames
            Dim rvk As RegistryValueKind = rk.GetValueKind(s)
            Select Case rvk
                Case RegistryValueKind.MultiString
                    Dim values As String() = CType(rk.GetValue(s), String())
                    Console.Write(vbCrLf + " {0} ({1}) = ""{2}""", s, rvk, values(0))
                    Dim i As Integer
                    For i = 1 To values.Length - 1
                        Console.Write(", ""{0}""", values(i))
                    Next i
                    Console.WriteLine()
                
                Case RegistryValueKind.Binary
                    Dim bytes As Byte() = CType(rk.GetValue(s), Byte())
                    Console.Write(vbCrLf + " {0} ({1}) = {2:X2}", s, rvk, bytes(0))
                    Dim i As Integer
                    For i = 1 To bytes.Length - 1
                        ' Display each byte as two hexadecimal digits.
                        Console.Write(" {0:X2}", bytes(i))
                    Next i
                    Console.WriteLine()
                
                Case Else
                    Console.WriteLine(vbCrLf + " {0} ({1}) = {2}", s, rvk, rk.GetValue(s))
            End Select
        Next s
    End Sub
End Class

Comentarios

Dado que muchos valores se pueden almacenar en cada clave del Registro, debe usar el name parámetro para especificar el valor determinado que desea establecer.

Para establecer valores en una clave, debe abrir la clave con acceso de escritura. Después de abrir una clave con acceso de escritura, puede cambiar cualquiera de los pares nombre-valor de esa clave.

Si el especificado name no existe en la clave, se crea y el valor asociado se establece valueen .

Esta sobrecarga de almacena enteros de SetValue 64 bits como cadenas (RegistryValueKind.String). Para almacenar números de 64 bits como RegistryValueKind.QWord valores, use la SetValue(String, Object, RegistryValueKind) sobrecarga que especifica RegistryValueKind.

Esta sobrecarga de almacena todos los valores de SetValue cadena como RegistryValueKind.String, incluso si contienen referencias expandibles a variables de entorno. Para guardar los valores de cadena como cadenas expandibles (RegistryValueKind.ExpandString), use la SetValue(String, Object, RegistryValueKind) sobrecarga que especifica RegistryValueKind.

Los tipos numéricos distintos de enteros de 32 bits se almacenan como cadenas mediante esta sobrecarga de método. Los elementos de enumeración se almacenan como cadenas que contienen los nombres de elemento.

Consulte también

• GetValue(String)
• GetValueKind(String)
• ValueCount

Source:

RegistryKey.cs

public:
 void SetValue(System::String ^ name, System::Object ^ value, Microsoft::Win32::RegistryValueKind valueKind);

public void SetValue (string name, object value, Microsoft.Win32.RegistryValueKind valueKind);

public void SetValue (string? name, object value, Microsoft.Win32.RegistryValueKind valueKind);

[System.Runtime.InteropServices.ComVisible(false)]
public void SetValue (string name, object value, Microsoft.Win32.RegistryValueKind valueKind);

member this.SetValue : string * obj * Microsoft.Win32.RegistryValueKind -> unit

[<System.Runtime.InteropServices.ComVisible(false)>]
member this.SetValue : string * obj * Microsoft.Win32.RegistryValueKind -> unit

Public Sub SetValue (name As String, value As Object, valueKind As RegistryValueKind)

Parámetros

Atributos

ComVisibleAttribute

Excepciones

Ejemplos

En el ejemplo de código siguiente se crea una clave de prueba y se usa el SetValue método para almacenar varios valores, especificando el tipo de datos del Registro para cada valor. A continuación, en el ejemplo se leen los pares nombre-valor y se muestran en la consola, utilizando el GetValueKind método para mostrar los tipos de datos del Registro correspondientes.

using namespace System;
using namespace Microsoft::Win32;
int main()
{
   
   // Delete and recreate the test key.
   Registry::CurrentUser->DeleteSubKey( "RegistryValueKindExample", false );
   RegistryKey ^ rk = Registry::CurrentUser->CreateSubKey( "RegistryValueKindExample" );
   
   // Create name/value pairs.
   // This overload supports QWord (long) values. 
   rk->SetValue( "QuadWordValue", 42, RegistryValueKind::QWord );
   
   // The following SetValue calls have the same effect as using the
   // SetValue overload that does not specify RegistryValueKind.
   //
   rk->SetValue( "DWordValue", 42, RegistryValueKind::DWord );
   rk->SetValue( "MultipleStringValue", gcnew array<String^>{
      "One","Two","Three"
   }, RegistryValueKind::MultiString );
   rk->SetValue( "BinaryValue", gcnew array<Byte>{
      10,43,44,45,14,255
   }, RegistryValueKind::Binary );
   rk->SetValue( "StringValue", "The path is %PATH%", RegistryValueKind::String );
   
   // This overload supports setting expandable string values. Compare
   // the output from this value with the previous string value.
   rk->SetValue( "ExpandedStringValue", "The path is %PATH%", RegistryValueKind::ExpandString );
   
   // Display all the name/value pairs stored in the test key, with the
   // registry data type in parentheses.
   //
   array<String^>^valueNames = rk->GetValueNames();
   System::Collections::IEnumerator^ myEnum = valueNames->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      String^ s = safe_cast<String^>(myEnum->Current);
      RegistryValueKind rvk = rk->GetValueKind( s );
      switch ( rvk )
      {
         case RegistryValueKind::MultiString:
         {
            array<String^>^values = (array<String^>^)rk->GetValue( s );
            Console::Write( "\r\n {0} ({1}) =", s, rvk );
            for ( int i = 0; i < values->Length; i++ )
            {
               if (i != 0) Console::Write(",");
               Console::Write( " \"{0}\"", values[ i ] );

            }
            Console::WriteLine();
            break;
         }
         case RegistryValueKind::Binary:
         {
            array<Byte>^bytes = (array<Byte>^)rk->GetValue( s );
            Console::Write( "\r\n {0} ({1}) =", s, rvk );
            for ( int i = 0; i < bytes->Length; i++ )
            {
               
               // Display each byte as two hexadecimal digits.
               Console::Write( " {0:X2}", bytes[ i ] );

            }
            Console::WriteLine();
            break;
         }
         default:
            Console::WriteLine( "\r\n {0} ({1}) = {2}", s, rvk, rk->GetValue( s ) );
            break;
      }
   }
}
/*

This code example produces the following output:
 QuadWordValue (QWord) = 42

 DWordValue (DWord) = 42

 MultipleStringValue (MultiString) =, "One", "Two", "Three"

 BinaryValue (Binary) = 0A 2B 2C 2D 0E FF

 StringValue (String) = The path is %PATH%

 ExpandedStringValue (ExpandString) = The path is C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
 [***The remainder of this output is omitted.***]

*/

using System;
using Microsoft.Win32;

public class Example
{
    public static void Main()
    {
        // Delete and recreate the test key.
        Registry.CurrentUser.DeleteSubKey("RegistryValueKindExample", false);
        RegistryKey rk = Registry.CurrentUser.CreateSubKey("RegistryValueKindExample");

        // Create name/value pairs.

        // This overload supports QWord (long) values.
        rk.SetValue("QuadWordValue", 42, RegistryValueKind.QWord);

        // The following SetValue calls have the same effect as using the
        // SetValue overload that does not specify RegistryValueKind.
        //
        rk.SetValue("DWordValue", 42, RegistryValueKind.DWord);
        rk.SetValue("MultipleStringValue", new string[] {"One", "Two", "Three"}, RegistryValueKind.MultiString);
        rk.SetValue("BinaryValue", new byte[] {10, 43, 44, 45, 14, 255}, RegistryValueKind.Binary);
        rk.SetValue("StringValue", "The path is %PATH%", RegistryValueKind.String);

        // This overload supports setting expandable string values. Compare
        // the output from this value with the previous string value.
        rk.SetValue("ExpandedStringValue", "The path is %PATH%", RegistryValueKind.ExpandString);

        // Display all name/value pairs stored in the test key, with each
        // registry data type in parentheses.
        //
        string[] valueNames = rk.GetValueNames();
        foreach (string s in valueNames)
        {
            RegistryValueKind rvk = rk.GetValueKind(s);
            switch (rvk)
            {
                case RegistryValueKind.MultiString :
                    string[] values = (string[]) rk.GetValue(s);
                    Console.Write("\r\n {0} ({1}) =", s, rvk);
                    for (int i = 0; i < values.Length; i++)
                    {
                        if (i != 0) Console.Write(",");
                        Console.Write(" \"{0}\"", values[i]);
                    }
                    Console.WriteLine();
                    break;

                case RegistryValueKind.Binary :
                    byte[] bytes = (byte[]) rk.GetValue(s);
                    Console.Write("\r\n {0} ({1}) =", s, rvk);
                    for (int i = 0; i < bytes.Length; i++)
                    {
                        // Display each byte as two hexadecimal digits.
                        Console.Write(" {0:X2}", bytes[i]);
                    }
                    Console.WriteLine();
                    break;

                default :
                    Console.WriteLine("\r\n {0} ({1}) = {2}", s, rvk, rk.GetValue(s));
                    break;
            }
        }
    }
}
/*

This code example produces the following output:
 QuadWordValue (QWord) = 42

 DWordValue (DWord) = 42

 MultipleStringValue (MultiString) =, "One", "Two", "Three"

 BinaryValue (Binary) = 0A 2B 2C 2D 0E FF

 StringValue (String) = The path is %PATH%

 ExpandedStringValue (ExpandString) = The path is C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
 [***The remainder of this output is omitted.***]

*/

Imports Microsoft.Win32

Public Class Example
    Public Shared Sub Main()
        ' Delete and recreate the test key.
        Registry.CurrentUser.DeleteSubKey("RegistryValueKindExample", False)
        Dim rk As RegistryKey = Registry.CurrentUser.CreateSubKey("RegistryValueKindExample")
        
        ' Create name/value pairs.
        ' This overload supports QWord (long) values. 
        rk.SetValue("QuadWordValue", 42, RegistryValueKind.QWord)
        
        ' The following SetValue calls have the same effect as using the
        ' SetValue overload that does not specify RegistryValueKind.
        '
        rk.SetValue("DWordValue", 42, RegistryValueKind.DWord)
        rk.SetValue("MultipleStringValue", New String() {"One", "Two", "Three"}, RegistryValueKind.MultiString)
        rk.SetValue("BinaryValue", New Byte() {10, 43, 44, 45, 14, 255}, RegistryValueKind.Binary)
        rk.SetValue("StringValue", "The path is %PATH%", RegistryValueKind.String) 
        
        ' This overload supports setting expandable string values. Compare
        ' the output from this value with the previous string value.
        rk.SetValue("ExpandedStringValue", "The path is %PATH%", RegistryValueKind.ExpandString)
        
        
        ' Display all name/value pairs stored in the test key, with each
        ' registry data type in parentheses.
        '
        Dim valueNames As String() = rk.GetValueNames()
        Dim s As String
        For Each s In  valueNames
            Dim rvk As RegistryValueKind = rk.GetValueKind(s)
            Select Case rvk
                Case RegistryValueKind.MultiString
                    Dim values As String() = CType(rk.GetValue(s), String())
                    Console.Write(vbCrLf & " {0} ({1}) =", s, rvk)
                    For i As Integer = 0 To values.Length - 1
                        If i <> 0 Then Console.Write(",")
                        Console.Write(" ""{0}""", values(i))
                    Next i
                    Console.WriteLine()
                
                Case RegistryValueKind.Binary
                    Dim bytes As Byte() = CType(rk.GetValue(s), Byte())
                    Console.Write(vbCrLf & " {0} ({1}) =", s, rvk)
                    For i As Integer = 0 To bytes.Length - 1
                        ' Display each byte as two hexadecimal digits.
                        Console.Write(" {0:X2}", bytes(i))
                    Next i
                    Console.WriteLine()
                
                Case Else
                    Console.WriteLine(vbCrLf & " {0} ({1}) = {2}", s, rvk, rk.GetValue(s))
            End Select
        Next s
    End Sub
End Class

'
'This code example produces the following output (some output is omitted):
'
' QuadWordValue (QWord) = 42
'
' DWordValue (DWord) = 42
'
' MultipleStringValue (MultiString) = "One", "Two", "Three"
'
' BinaryValue (Binary) = 0A 2B 2C 2D 0E FF
'
' StringValue (String) = The path is %PATH%
'
' ExpandedStringValue (ExpandString) = The path is C:\Program Files\Microsoft.NET\SDK\v2.0\Bin;
' [***The remainder of this output is omitted.***]

Comentarios

Dado que muchos valores se pueden almacenar en cada clave del Registro, debe usar el name parámetro para especificar el valor determinado que desea establecer.

Para establecer valores en una clave, debe abrir la clave con acceso de escritura. Después de abrir una clave con acceso de escritura, puede cambiar cualquiera de los pares nombre-valor de esa clave.

Si el especificado name no existe en la clave, se crea y el valor asociado se establece valueen .

Si el tipo de especificado value no coincide con el especificado valueKindy los datos no se pueden convertir, ArgumentException se produce . Por ejemplo, puede almacenar como System.Int64 , RegistryValueKind.DWordpero solo si su valor es menor que el valor máximo de .System.Int32 No se puede almacenar un valor de cadena único como .RegistryValueKind.MultiString

Consulte también

• GetValueKind(String)
• GetValue(String)
• ValueCount
• RegistryValueKind