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ClientBase<TChannel>::InvokeAsync Method (ClientBase<TChannel>::BeginOperationDelegate^, array<Object^>^, ClientBase<TChannel>::EndOperationDelegate^, SendOrPostCallback^, Object^)

 

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,
	array<Object^>^ inValues,
	ClientBase<TChannel>::EndOperationDelegate^ endOperationDelegate,
	SendOrPostCallback^ operationCompletedCallback,
	Object^ userState
)

Parameters

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

A delegate that is used for calling the asynchronous operation.

inValues
Type: array<System::Object^>^

The input values to the asynchronous call.

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

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

operationCompletedCallback
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.

userState
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^, array<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
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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