How to generate a wsdl file of a web service in visual studio

 I created a web service, its working fine. I want to share a wsdl file for webservice to my client

Nothing special needs to be done to generate the WSDL to your webservice. Just postfix your Webservice url with "?WSDL" and you will get it. For example:

http://localhost/HelloService.asmx?WSDL

Once you do that, save the WSDL as an XML file and add it as web-reference to your client .NET application where you want to call it.

The following command creates a client proxy class in the C# language for the XML Web service

wsdl http://hostServer/WebserviceRoot/WebServiceName.asmx?WSDL

The following command creates a client proxy class in the C# language for an XML Web service located at the specified URL. The tool saves the client proxy class in the file myProxyClass.cs.