This class is used to return a result when invoking a web service method asynchronously, through the corresponding "Begin" and "End" methods. These method variants are created for you when you generate a proxy automatically by using Visual Studio.NET or wsdl.exe.

public class WebClientAsyncResult : IAsyncResult {
// Public Instance Properties
   public object AsyncState{get; }                  // implements IAsyncResult
   public WaitHandle AsyncWaitHandle{get; }         // implements IAsyncResult
   public bool CompletedSynchronously{get; }        // implements IAsyncResult
   public bool IsCompleted{get; }                   // implements IAsyncResult
// Public Instance Methods
   public void Abort( );
}