Skip to main content
.NET Framework Class Library
Type..::.TypeHandle Property

Gets the handle for the current Type.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public Overridable ReadOnly Property TypeHandle As RuntimeTypeHandle
public virtual RuntimeTypeHandle TypeHandle { get; }
public:
virtual property RuntimeTypeHandle TypeHandle {
	RuntimeTypeHandle get ();
}
abstract TypeHandle : RuntimeTypeHandle
override TypeHandle : RuntimeTypeHandle

Property Value

Type: System..::.RuntimeTypeHandle
The handle for the current Type.

Implements

_Type..::.TypeHandle
Exceptions
ExceptionCondition
NotSupportedException

The .NET Compact Framework does not currently support this property.

Remarks

TypeHandle encapsulates a pointer to an internal data structure that represents the type. This handle is unique during the process lifetime. The handle is valid only in the application domain in which it was obtained.

Examples

The following example returns the handle of the corresponding type and passes the handle to a method that gets the type from the handle and displays it.


Imports System
Imports System.Reflection
Imports Microsoft.VisualBasic
Class [MyClass]
    Public myField As Integer = 10
End Class '[MyClass]
Class Type_TypeHandle
    Public Shared Sub Main()
        Try
            Dim [myClass] As New [MyClass]()

            ' Get the type of MyClass.
            Dim myClassType As Type = [myClass].GetType()

            ' Get the runtime handle of MyClass.
            Dim myClassHandle As RuntimeTypeHandle = myClassType.TypeHandle

            DisplayTypeHandle(myClassHandle)
        Catch e As Exception
            Console.WriteLine("Exception: {0}", e.Message.ToString())
        End Try
    End Sub 'Main

    Public Shared Sub DisplayTypeHandle(ByVal myTypeHandle As RuntimeTypeHandle)
        ' Get the type from the handle.
        Dim myType As Type = Type.GetTypeFromHandle(myTypeHandle)
        ' Display the type.
        Console.WriteLine(ControlChars.NewLine + "Displaying the type from the handle:" + ControlChars.NewLine)
        Console.WriteLine("The type is {0}.", myType.ToString())
    End Sub 'DisplayTypeHandle
End Class 'Type_TypeHandle


using System;
using System.Reflection;
class MyClass
{
    public int myField = 10;
}

class Type_TypeHandle
{
    public static void Main()
    {
        try
        {
            MyClass myClass = new MyClass();

            // Get the type of MyClass.
            Type myClassType = myClass.GetType();

            // Get the runtime handle of MyClass.
            RuntimeTypeHandle myClassHandle = myClassType.TypeHandle;

            DisplayTypeHandle(myClassHandle);
        }
        catch(Exception e)
        {
            Console.WriteLine("Exception: {0}", e.Message );
        }
    }

    public static void DisplayTypeHandle(RuntimeTypeHandle myTypeHandle)
    {
        // Get the type from the handle.
        Type myType = Type.GetTypeFromHandle(myTypeHandle);      
        // Display the type.
        Console.WriteLine("\nDisplaying the type from the handle:\n");
        Console.WriteLine("The type is {0}.", myType.ToString());
    }
}


using namespace System;
using namespace System::Reflection;
ref class MyClass
{
public:
   int myField;
};

void DisplayTypeHandle( RuntimeTypeHandle myTypeHandle )
{

   // Get the type from the handle.
   Type^ myType = Type::GetTypeFromHandle( myTypeHandle );

   // Display the type.
   Console::WriteLine( "\nDisplaying the type from the handle:\n" );
   Console::WriteLine( "The type is {0}.", myType );
}

int main()
{
   try
   {
      MyClass^ myClass = gcnew MyClass;

      // Get the type of MyClass.
      Type^ myClassType = myClass->GetType();

      // Get the runtime handle of MyClass.
      RuntimeTypeHandle myClassHandle = myClassType->TypeHandle;
      DisplayTypeHandle( myClassHandle );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception: {0}", e->Message );
   }

}


Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Microsoft is conducting an online survey to understand your opinion of the MSDN Web site. If you choose to participate, the online survey will be presented to you when you leave the MSDN Web site.

Would you like to participate?