ClientBase(TChannel).InvokeAsync Method (System.ServiceModel)

InvokeAsync Method

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This page is specific to

Microsoft Silverlight 2

Other versions are also available for the following:

.NET Framework Class Library for Silverlight

ClientBase<(Of <(TChannel>)>)..::.InvokeAsync Method

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

Visual Basic (Declaration)

Protected Sub InvokeAsync ( _
    beginOperationDelegate As ClientBase<(Of <(<'TChannel>)>)>..::..BeginOperationDelegate, _
    inValues As Object(), _
    endOperationDelegate As ClientBase<(Of <(<'TChannel>)>)>..::..EndOperationDelegate, _
    operationCompletedCallback As SendOrPostCallback, _
    userState As Object _
)

Visual Basic (Usage)

Dim beginOperationDelegate As ClientBase<(Of <(<'TChannel>)>)>..::..BeginOperationDelegate
Dim inValues As Object()
Dim endOperationDelegate As ClientBase<(Of <(<'TChannel>)>)>..::..EndOperationDelegate
Dim operationCompletedCallback As SendOrPostCallback
Dim userState As Object

Me.InvokeAsync(beginOperationDelegate, _
    inValues, endOperationDelegate, _
    operationCompletedCallback, userState)

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<(Of <(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<(Of <(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<(Of <(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, array<Object>[]()[], EndOperationDelegate, SendOrPostCallback, Object), and when each operation is completed, your event handler can determine which instance of the operation raised the completion event.

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

ClientBase<(Of <(TChannel>)>) Class

ClientBase<(Of <(TChannel>)>) Members

System.ServiceModel Namespace