Create A WCF Service

> First of all, On Visual Studio Click on File --> New --> Project.
> A new window will open as shown below.



> Select WCF --> WCF Service Application --> OK.
> This much of steps will create a WCF Service Application.
> In the Solution, there will be mainly having following files.

> 1. Service file (Service1.svc)
> 2. Interface file (IService.cs).



> Inside Interface file, there is having one Method corresponding to each Method on the SVC file.
> On the Interface file, we can get the definition of methods only.
> In the Interface file, the Interface comes under [ServiceContract].
> Each Interface method comes under [OperationContract] as shown below.



> On the Service file (SVC file), we have to write down the logic of the method.
> Performing database operation or implementing business logic will be done on the SVC file.



> In the above example, GetData would return a string value.
> The defintion of methods on SVC file will be same as in Interface file.
> Defintion means Input, Output and Method Name under [OperationContract] on the Interface file.

Compile And Run A WCF Service

> Set WCF project as Set As Start Project.
> For Running the WCF Service, just set the SVC file as Set As Start Page.
> Then click DEBUG --> Start Debugging.



> This will open WCF Test Client.
> There just double click on the GetData method to test the Service.
> Here we have given the Input as 1 and the output obtained is "You entered 1".
> By this way we can create and test WCF Service in Visual Studio.

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