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Type.GetTypeHandle(Object) Methode

Definition

Ruft das Handle für den Type-Wert eines angegebenen Objekts ab.

public:
 static RuntimeTypeHandle GetTypeHandle(System::Object ^ o);
public static RuntimeTypeHandle GetTypeHandle (object o);
static member GetTypeHandle : obj -> RuntimeTypeHandle
Public Shared Function GetTypeHandle (o As Object) As RuntimeTypeHandle

Parameter

o
Object

Das Objekt, für das das Typhandle abgerufen werden soll.

Gibt zurück

RuntimeTypeHandle

Das Handle für den Type des angegebenen Object.

Ausnahmen

o ist null.

Beispiele

Im folgenden Beispiel wird die -Klasse definiert, eine Instanz davon abgerufen und das MyClass1 Laufzeithand handle des -Objekts abgerufen.

using namespace System;
using namespace System::Reflection;

public ref class MyClass1
{
private:
    int x;

public:
    int MyMethod()
    {
        return x;
    }
};

int main()
{
    MyClass1^ myClass1 = gcnew MyClass1;
   
    // Get the RuntimeTypeHandle from an object.
    RuntimeTypeHandle myRTHFromObject = Type::GetTypeHandle( myClass1 );
   
    // Get the RuntimeTypeHandle from a type.
    RuntimeTypeHandle myRTHFromType = MyClass1::typeid->TypeHandle;

    Console::WriteLine( "\nmyRTHFromObject.Value:  {0}", myRTHFromObject.Value );
    Console::WriteLine( "myRTHFromObject.GetType():  {0}", myRTHFromObject.GetType() );
    Console::WriteLine( "Get the type back from the handle..." );
    Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromObject):  {0}", 
        Type::GetTypeFromHandle(myRTHFromObject) );

    Console::WriteLine( "\nmyRTHFromObject.Equals(myRTHFromType):  {0}", 
        myRTHFromObject.Equals(myRTHFromType) );

    Console::WriteLine( "\nmyRTHFromType.Value:  {0}", myRTHFromType.Value );
    Console::WriteLine( "myRTHFromType.GetType():  {0}", myRTHFromType.GetType() );
    Console::WriteLine( "Get the type back from the handle..." );
    Console::WriteLine( "Type::GetTypeFromHandle(myRTHFromType):  {0}", 
        Type::GetTypeFromHandle(myRTHFromType) );
}

/* This code example produces output similar to the following:

myRTHFromObject.Value:  3295832
myRTHFromObject.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type::GetTypeFromHandle(myRTHFromObject):  MyClass1

myRTHFromObject.Equals(myRTHFromType):  True

myRTHFromType.Value:  3295832
myRTHFromType.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type::GetTypeFromHandle(myRTHFromType):  MyClass1
 */
using System;
using System.Reflection;

public class MyClass1
{
    private int x=0;
    public int MyMethod()
    {
        return x;
    }
}

public class MyClass2
{
    public static void Main()
    {
        MyClass1 myClass1 = new MyClass1();

        // Get the RuntimeTypeHandle from an object.
        RuntimeTypeHandle myRTHFromObject = Type.GetTypeHandle(myClass1);
        // Get the RuntimeTypeHandle from a type.
        RuntimeTypeHandle myRTHFromType = typeof(MyClass1).TypeHandle;

        Console.WriteLine("\nmyRTHFromObject.Value:  {0}", myRTHFromObject.Value);
        Console.WriteLine("myRTHFromObject.GetType():  {0}", myRTHFromObject.GetType());
        Console.WriteLine("Get the type back from the handle...");
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromObject):  {0}",
            Type.GetTypeFromHandle(myRTHFromObject));

        Console.WriteLine("\nmyRTHFromObject.Equals(myRTHFromType):  {0}",
            myRTHFromObject.Equals(myRTHFromType));

        Console.WriteLine("\nmyRTHFromType.Value:  {0}", myRTHFromType.Value);
        Console.WriteLine("myRTHFromType.GetType():  {0}", myRTHFromType.GetType());
        Console.WriteLine("Get the type back from the handle...");
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromType):  {0}",
            Type.GetTypeFromHandle(myRTHFromType));
    }
}

/* This code example produces output similar to the following:

myRTHFromObject.Value:  799464
myRTHFromObject.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type.GetTypeFromHandle(myRTHFromObject):  MyClass1

myRTHFromObject.Equals(myRTHFromType):  True

myRTHFromType.Value:  799464
myRTHFromType.GetType():  System.RuntimeTypeHandle
Get the type back from the handle...
Type.GetTypeFromHandle(myRTHFromType):  MyClass1
 */
Imports System.Reflection

Public Class MyClass1
    Private x As Integer = 0
   
    Public Function MyMethod() As Integer
        Return x
    End Function 'MyMethod
End Class 

Public Class MyClass2
   
    Public Shared Sub Main()
        Dim myClass1 As New MyClass1()
      
        ' Get the RuntimeTypeHandle from an object.
        Dim myRTHFromObject As RuntimeTypeHandle = Type.GetTypeHandle(myClass1)
        ' Get the RuntimeTypeHandle from a type.
        Dim myRTHFromType As RuntimeTypeHandle = GetType(MyClass1).TypeHandle
      
        Console.WriteLine(vbLf & "myRTHFromObject.Value:  {0}", _
            myRTHFromObject.Value)
        Console.WriteLine("myRTHFromObject.GetType():  {0}", _
            myRTHFromObject.GetType())
        Console.WriteLine("Get the type back from the handle...")
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromObject):  {0}", _
            Type.GetTypeFromHandle(myRTHFromObject))

        Console.WriteLine(vbLf & "myRTHFromObject.Equals(myRTHFromType):  {0}", _
            myRTHFromObject.Equals(myRTHFromType))

        Console.WriteLine(vbLf & "myRTHFromType.Value:  {0}", _
            myRTHFromType.Value)
        Console.WriteLine("myRTHFromType.GetType():  {0}", _
            myRTHFromType.GetType())
        Console.WriteLine("Get the type back from the handle...")
        Console.WriteLine("Type.GetTypeFromHandle(myRTHFromType):  {0}", _
            Type.GetTypeFromHandle(myRTHFromType))
    End Sub 
End Class 

' This code example produces output similar to the following:
'
'myRTHFromObject.Value:  7549720
'myRTHFromObject.GetType():  System.RuntimeTypeHandle
'Get the type back from the handle...
'Type.GetTypeFromHandle(myRTHFromObject):  MyClass1
'
'myRTHFromObject.Equals(myRTHFromType):  True
'
'myRTHFromType.Value:  7549720
'myRTHFromType.GetType():  System.RuntimeTypeHandle
'Get the type back from the handle...
'Type.GetTypeFromHandle(myRTHFromType):  MyClass1

Hinweise

Die Handles sind nur in der Anwendungsdomäne gültig, in der sie erhalten wurden.

Gilt für

Siehe auch