Object.GetType Yöntem

public:
 Type ^ GetType();

public Type GetType ();

member this.GetType : unit -> Type

Public Function GetType () As Type

Döndürülenler

Type

Geçerli örneğin tam çalışma zamanı türü.

Örnekler

Aşağıdaki kod örneği, geçerli örneğin çalışma zamanı türünü döndürdüğünü GetType gösterir.

using namespace System;

public ref class MyBaseClass {};

public ref class MyDerivedClass: MyBaseClass{};

int main()
{
   MyBaseClass^ myBase = gcnew MyBaseClass;
   MyDerivedClass^ myDerived = gcnew MyDerivedClass;
   Object^ o = myDerived;
   MyBaseClass^ b = myDerived;
   Console::WriteLine( "mybase: Type is {0}", myBase->GetType() );
   Console::WriteLine( "myDerived: Type is {0}", myDerived->GetType() );
   Console::WriteLine( "object o = myDerived: Type is {0}", o->GetType() );
   Console::WriteLine( "MyBaseClass b = myDerived: Type is {0}", b->GetType() );
}

/*

This code produces the following output.

mybase: Type is MyBaseClass
myDerived: Type is MyDerivedClass
object o = myDerived: Type is MyDerivedClass
MyBaseClass b = myDerived: Type is MyDerivedClass 

*/

using System;

public class MyBaseClass {
}

public class MyDerivedClass: MyBaseClass {
}

public class Test
{
   public static void Main()
   {
      MyBaseClass myBase = new MyBaseClass();
      MyDerivedClass myDerived = new MyDerivedClass();
      object o = myDerived;
      MyBaseClass b = myDerived;

      Console.WriteLine("mybase: Type is {0}", myBase.GetType());
      Console.WriteLine("myDerived: Type is {0}", myDerived.GetType());
      Console.WriteLine("object o = myDerived: Type is {0}", o.GetType());
      Console.WriteLine("MyBaseClass b = myDerived: Type is {0}", b.GetType());
   }
}
// The example displays the following output:
//    mybase: Type is MyBaseClass
//    myDerived: Type is MyDerivedClass
//    object o = myDerived: Type is MyDerivedClass
//    MyBaseClass b = myDerived: Type is MyDerivedClass

type MyBaseClass() = class end

type MyDerivedClass() = 
    inherit MyBaseClass()

let myBase = MyBaseClass()
let myDerived = MyDerivedClass()
let o: obj = myDerived
let b: MyBaseClass = myDerived

printfn $"mybase: Type is {myBase.GetType()}"
printfn $"myDerived: Type is {myDerived.GetType()}"
printfn $"object o = myDerived: Type is {o.GetType()}"
printfn $"MyBaseClass b = myDerived: Type is {b.GetType()}"
// The example displays the following output:
//    mybase: Type is MyBaseClass
//    myDerived: Type is MyDerivedClass
//    object o = myDerived: Type is MyDerivedClass
//    MyBaseClass b = myDerived: Type is MyDerivedClass

' Define a base and a derived class.
Public Class MyBaseClass
End Class 

Public Class MyDerivedClass : Inherits MyBaseClass
End Class 

Public Class Test
    Public Shared Sub Main() 
        Dim base As New MyBaseClass()
        Dim derived As New MyDerivedClass()
        Dim o As Object = derived
        Dim b As MyBaseClass = derived
        
        Console.WriteLine("base.GetType returns {0}", base.GetType())
        Console.WriteLine("derived.GetType returns {0}", derived.GetType())
        Console.WriteLine("Dim o As Object = derived; o.GetType returns {0}", o.GetType())
        Console.WriteLine("Dim b As MyBaseClass = derived; b.Type returns {0}", b.GetType())
    End Sub 
End Class 
' The example displays the following output:
'    base.GetType returns MyBaseClass
'    derived.GetType returns MyDerivedClass
'    Dim o As Object = derived; o.GetType returns MyDerivedClass
'    Dim b As MyBaseClass = derived; b.Type returns MyDerivedClass

Açıklamalar

.NET tür sistemindeki tüm türler için temel sınıf olduğundan System.Object , GetType yöntemi tüm .NET türlerini temsil eden nesneleri döndürmek Type için kullanılabilir. .NET aşağıdaki beş tür kategorisini tanır:

• sınıfından türetilen System.Objectsınıflar

• 'den System.ValueTypetüretilen değer türleri.

• .NET Framework 2.0'dan System.Object başlayarak türetilen arabirimler.

• 'den System.Enumtüretilen numaralandırmalar.

• Temsilciler, 'den System.MulticastDelegatetüretilir.

Aynı çalışma zamanı türlerine sahip iki nesne x için döndürür Object.ReferenceEquals(x.GetType(),y.GetType()) true.y Aşağıdaki örnek, bir sayısal değerin GetType ReferenceEquals diğer iki sayısal değerle aynı türde olup olmadığını belirlemek için yöntemiyle yöntemini kullanır.

int n1 = 12;
int n2 = 82;
long n3 = 12;

Console.WriteLine("n1 and n2 are the same type: {0}",
                  Object.ReferenceEquals(n1.GetType(), n2.GetType()));
Console.WriteLine("n1 and n3 are the same type: {0}",
                  Object.ReferenceEquals(n1.GetType(), n3.GetType()));

// The example displays the following output:
//       n1 and n2 are the same type: True
//       n1 and n3 are the same type: False

open System

let n1 = 12
let n2 = 82
let n3 = 12L

printfn $"n1 and n2 are the same type: {Object.ReferenceEquals(n1.GetType(), n2.GetType())}"
printfn $"n1 and n3 are the same type: {Object.ReferenceEquals(n1.GetType(), n3.GetType())}"
// The example displays the following output:
//       n1 and n2 are the same type: True
//       n1 and n3 are the same type: False

Module Example
   Public Sub Main()
      Dim n1 As Integer = 12
      Dim n2 As Integer = 82
      Dim n3 As Long = 12
      
      Console.WriteLine("n1 and n2 are the same type: {0}",
                        Object.ReferenceEquals(n1.GetType(), n2.GetType()))
      Console.WriteLine("n1 and n3 are the same type: {0}",
                        Object.ReferenceEquals(n1.GetType(), n3.GetType()))
   End Sub
End Module
' The example displays the following output:
'       n1 and n2 are the same type: True
'       n1 and n3 are the same type: False

GetType yöntemi, 'den Objecttüretilen tüm türler tarafından devralınır. Bu, kendi dilinizin karşılaştırma anahtar sözcüğünü kullanmaya ek olarak, aşağıdaki örnekte gösterildiği gibi belirli bir nesnenin türünü belirlemek için yöntemini kullanabileceğiniz GetType anlamına gelir.

object[] values = { (int) 12, (long) 10653, (byte) 12, (sbyte) -5,
                   16.3, "string" };
foreach (var value in values) {
   Type t = value.GetType();
   if (t.Equals(typeof(byte)))
      Console.WriteLine("{0} is an unsigned byte.", value);
   else if (t.Equals(typeof(sbyte)))
      Console.WriteLine("{0} is a signed byte.", value);
   else if (t.Equals(typeof(int)))
      Console.WriteLine("{0} is a 32-bit integer.", value);
   else if (t.Equals(typeof(long)))
      Console.WriteLine("{0} is a 64-bit integer.", value);
   else if (t.Equals(typeof(double)))
      Console.WriteLine("{0} is a double-precision floating point.",
                        value);
   else
      Console.WriteLine("'{0}' is another data type.", value);
}

// The example displays the following output:
//    12 is a 32-bit integer.
//    10653 is a 32-bit integer.
//    12 is an unsigned byte.
//    -5 is a signed byte.
//    16.3 is a double-precision floating point.
//    'string' is another data type.

let values: obj[] = 
    [| 12; 10653L; 12uy
       -5y; 16.3; "string" |]

for value in values do
    let t = value.GetType()
    if t.Equals typeof<byte> then
        printfn $"{value} is an unsigned byte."
    elif t.Equals typeof<sbyte> then
        printfn $"{value} is a signed byte."
    elif t.Equals typeof<int> then
        printfn $"{value} is a 32-bit integer."
    elif t.Equals typeof<int64> then
        printfn $"{value} is a 64-bit integer."
    elif t.Equals typeof<double> then
        printfn $"{value} is a double-precision floating point."
    else
        printfn $"'{value}' is another data type."

// The example displays the following output:
//    12 is a 32-bit integer.
//    10653 is a 32-bit integer.
//    12 is an unsigned byte.
//    -5 is a signed byte.
//    16.3 is a double-precision floating point.
//    'string' is another data type.

Module Example
   Public Sub Main()
      Dim values() As Object = { 12, CLng(10653), CByte(12), 
                                 CSbyte(-5), 16.3, "string" } 
      For Each value In values
         Dim t AS Type = value.GetType()
         If t.Equals(GetType(Byte))
            Console.WriteLine("{0} is an unsigned byte.", value)
         ElseIf t.Equals(GetType(SByte))
            Console.WriteLine("{0} is a signed byte.", value)
         ElseIf t.Equals(GetType(Integer))   
            Console.WriteLine("{0} is a 32-bit integer.", value)
         ElseIf t.Equals(GetType(Long))   
            Console.WriteLine("{0} is a 64-bit integer.", value)
         ElseIf t.Equals(GetType(Double))
            Console.WriteLine("{0} is a double-precision floating point.", 
                              value)
         Else
            Console.WriteLine("'{0}' is another data type.", value)
         End If   
      Next      
   End Sub
End Module
' The example displays the following output:
'       12 is a 32-bit integer.
'       10653 is a 32-bit integer.
'       12 is an unsigned byte.
'       -5 is a signed byte.
'       16.3 is a double-precision floating point.
'       'string' is another data type.

Type nesnesi, geçerli Objectöğesinin sınıfıyla ilişkili meta verileri kullanıma sunar.

Şunlara uygulanır

Ayrıca bkz.

• Type