IRequestChannel.BeginRequest Method (Message, AsyncCallback, Object)
Begins an asynchronous operation to transmit a request message to the reply side of a request-reply message exchange.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
The AsyncCallback delegate that receives the notification of the completion of the asynchronous operation transmitting a request message.
An object, specified by the application, that contains state information associated with the asynchronous operation transmitting a request message.
Available since 8
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0