Iservice in WCF.

http://www.c-sharpcorner.com/UploadFile/44fb93/crud-operations-using-wcf-in-Asp-Net/

Hi Vignesh, refer following article as i mentioned below, may you get some idea where and how it will be works.

Hi Jaipal, Could you explain what happen internally and flow of Iservice.

IService.cs is an Interface that consists all service methods and is a service contract. Service.cs inherits and implements the methods that are defined in IService.cs. Client interacts with WCF service through the contract i.e., IService.cs to access methods. When the method is NOT declared in the IService.cs it won't be accessible from client.