title: Async() methods in WCF test client
body: <p>I wrote a simple WCF service and when I debug the project I get a WCF client window in which each service method has an async() version (for example, for the method ConnectMessages() from the service there is a new method GetMessagesAsync(). However, the async methods are shadowed and marked with a red 'x' and ahve the following caption:</p>
  
  <p>This operation is not supported in wcf test client because it uses system.threading.tasks.task</p>
  
  <p>my questions are: why does each method have an async version and why are these async marked as unfunctional? what does this mean?</p>