IExtensibleObject(Of T) Interface
Enables an object to participate in custom behavior, such as registering for events, or watching state transitions.
Namespace: System.ServiceModel
Assembly: System.ServiceModel (in System.ServiceModel.dll)
The IExtensibleObject(Of T) type exposes the following members.
Implement IExtensibleObject(Of T) to enable aggregation of extensions. System.ServiceModel.IContextChannel is an extensible object in Silverlight.
For example, if you are implementing a TreeNode class and want to allow external code to add annotations and methods to some instances of TreeNode, you can have TreeNode implement IExtensibleObject<TreeNode>. This enables code that uses TreeNode to add objects that implement IExtensibleObject<TreeNode> to the Extensions collection.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

