WCF ASync Method Not Called

Question

I have a WCF service which is workng fine but I now want to make the calls to its method asynchronous. In VS2010, I have re-added the service reference in the client and selected the checkbox for async methods. However, now when I call MyMethodAsync() instead of MyMethod() nothing happens.

What am I doing wrong?

Answer 1

You need to subscribe for the success callback. Here's an article on MSDN that shows an example:

client.MyMethodCompleted += new EventHandler<MyMethodCompletedEventArgs>(MyMethodCallback);
client.MyMethodAsync(parameters);

MyMethodAsync returns immediately and the MyMethodCallback function will be invoked once the operation completes and it will be passed as argument the result of the asynchronous operation.