Calling a WCF service asynchronously

This recipe will describe how to create a WCF service, host it in a console application, make service metadata available to clients, and how to consume it in an asynchronous way.

Getting ready

To step through this recipe, you will need a running Visual Studio 2012. There are no other prerequisites. The source code for this recipe can be found at BookSamples\Chapter9\Recipe4.

How to do it...

To understand how to work with a WCF service, perform the following steps:

1. Start Visual Studio 2012. Create a new C# Console Application project.
2. Add references to the System.ServiceModel library. Right-click on the References folder in the project and select the Add reference… menu option. Add references to the System.ServiceModel library. You can use the search function in the reference manager dialog as shown in the following screenshot:
   
3. In the Program.cs file add the following using directives:

   using System;
   using System.ServiceModel;
   using System.ServiceModel...