Type.GetTypeHandle Method (Object)
.NET Framework (current version)
Gets the handle for the Type of a specified object.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- o
-
Type:
System.Object
The object for which to get the type handle.
| Exception | Condition |
|---|---|
| ArgumentNullException | o is null. |
The handles are valid only in the application domain in which they were obtained.
The following example defines the class MyClass1, gets an instance of it, and retrieves the runtime handle of the object.
Imports System 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
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.0
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.0
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