ICommunicationObject.BeginClose Method (AsyncCallback, Object)


Begins an asynchronous operation to close a communication object.

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

IAsyncResult BeginClose(
	AsyncCallback callback,
	object state


Type: System.AsyncCallback

The AsyncCallback delegate that receives notification of the completion of the asynchronous close operation.

Type: System.Object

An object, specified by the application, that contains state information associated with the asynchronous close operation.

Return Value

Type: System.IAsyncResult

The IAsyncResult that references the asynchronous close operation.

Exception Condition

M:System.ServiceModel.ICommunicationObject.BeginClose was called on an object in the Faulted state.


The default timeout elapsed before the ICommunicationObject was able to close gracefully.

This method causes an ICommunicationObject to gracefully transition from any state, other than the Opened state to the Closed state. The BeginClose method allows any unfinished work to be completed before returning. For example, finish sending any buffered messages).

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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