Article
11/18/2011

Type.GUID Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets the GUID associated with the Type.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public MustOverride ReadOnly Property GUID As Guid

public abstract Guid GUID { get; }

Property Value

Type: System.Guid
The GUID associated with the Type.

Remarks

A GUID is associated with a type using the GuidAttribute attribute.

Examples

The following example creates the class MyClass1 with a public method, creates a Type object corresponding to MyClass1, and gets the Guid structure using the GUID property of the Type class.

Note:
To run this example, see Building Examples That Use a Demo Method and a TextBlock Control.



Class Example

   Public Class MyClass1

      Public Sub MyMethod1()
      End Sub 'MyMethod1

   End Class

   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      ' Get the type corresponding to the class MyClass.
      Dim myType As Type = GetType(MyClass1)
      ' Get the object of the Guid.
      Dim myGuid As Guid = CType(myType.GUID, Guid)
      outputBlock.Text &= ("The name of the class is " + myType.ToString()) & vbCrLf
      outputBlock.Text &= ("The ClassId of MyClass is " + myType.GUID.ToString()) & vbCrLf
   End Sub 'Main 
End Class 'MyGetTypeFromCLSID

using System;

class Example
{
   public class MyClass1
   {
      public void MyMethod1()
      {
      }
   }
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      // Get the type corresponding to the class MyClass.
      Type myType = typeof(MyClass1);
      // Get the object of the Guid.
      Guid myGuid = (Guid)myType.GUID;
      outputBlock.Text += "The name of the class is " + myType.ToString() + "\n";
      outputBlock.Text += "The ClassId of MyClass is " + myType.GUID + "\n";
   }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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