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ClientBase<TChannel>.InvokeAsync Method

Silverlight

Other Versions

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)

Syntax

Copy

protected void InvokeAsync(
	ClientBase<(Of <(<'TChannel>)>)>..::..BeginOperationDelegate beginOperationDelegate,
	Object[] inValues,
	ClientBase<(Of <(<'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: 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.

Remarks

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

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