how to create a WSDL file from a web service in asp.net

Hi,

You must have a webservice like this http://localhost/MyWebService.asmx

For retreive your webservice wsdl you must put this address at the browser address bar:
http://localhost/MyWebService.asmx?wsdl

If you want to use this wsdl, you must go to the visual studio and add web reference with the wsdl address. You can also, generate your service proxy by command-line, executing:
wsdl.exe http://localhost/MyWebService.asmx?wsdl


2014-02-28
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Check your configuration file for this setting:

<behaviors>
   <servicebehaviors>
     <behavior>
       <servicemetadata httpgetenabled="true">
     </servicemetadata>
   </behavior>
 </servicebehaviors>
</behaviors>

The httpGetEnabled attribute must be set to true.

I suppose you are using WCF