Before some days I have posted an blog about How to create overloaded web methods in asp.net web service? In this post I am going to explain how we can create overload methods in WCF(Windows Communication Foundation) service with C# language. So let’s consider same Hello world example which we have used web service overload method. Let’s create two methods HelloWorld one is with name and another is without parameter. For WCF service we have to first create interface following is a code for that.