ClientBase<TChannel>.InvokeAsync Method (ClientBase<TChannel>.BeginOperationDelegate, Object[], ClientBase<TChannel>.EndOperationDelegate, SendOrPostCallback, Object)


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Provides support for implementing the event-based asynchronous pattern. For more information about this pattern, see Event-based Asynchronous Pattern Overview.

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

protected void InvokeAsync(
	ClientBase<TChannel>.BeginOperationDelegate beginOperationDelegate,
	object[] inValues,
	ClientBase<TChannel>.EndOperationDelegate endOperationDelegate,
	SendOrPostCallback operationCompletedCallback,
	object userState


Type: System.ServiceModel.ClientBase<TChannel>.BeginOperationDelegate

A delegate that is used for calling the asynchronous operation.

Type: System.Object[]

The input values to the asynchronous call.

Type: System.ServiceModel.ClientBase<TChannel>.EndOperationDelegate

A delegate that is used to end the asynchronous call after it has completed.

Type: System.Threading.SendOrPostCallback

A client-supplied callback that is invoked when the asynchronous method is complete. The callback is passed to the ClientBase<TChannel>.BeginOperationDelegate.

Type: System.Object

The userState object to associate with the asynchronous call.

Provide a unique value, such as a GUID or hash code, in the userState parameter for each call to InvokeAsync(ClientBase<TChannel>.BeginOperationDelegate, Object[], ClientBase<TChannel>.EndOperationDelegate, SendOrPostCallback, Object), and when each operation is completed, your event handler can determine which instance of the operation raised the completion event.

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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