IExtension(T) Interface
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IExtension<T> Interface

 

Enables an object to extend another object through aggregation.

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

public interface IExtension<T>
where T : object, IExtensibleObject<T>

Type Parameters

T

The object that participates in the custom behavior.

NameDescription
System_CAPS_pubmethodAttach(T)

Enables an extension object to find out when it has been aggregated. Called when the extension is added to the IExtensibleObject<T>.Extensions property.

System_CAPS_pubmethodDetach(T)

Enables an object to find out when it is no longer aggregated. Called when an extension is removed from the IExtensibleObject<T>.Extensions property.

WCF allows you to extend System.ServiceModel.IExtensibleObject<T> objects (the System.ServiceModel.IContextChannel, System.ServiceModel.ServiceHost, System.ServiceModel.InstanceContext, and System.ServiceModel.OperationContext classes) by adding a new state or behavior by using its extensible object pattern. The extensible object pattern is used in WCF to either extend existing run-time classes with new functionality or to add new state features to an object.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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