User-1662538993 posted
What are you trying to do? Are you trying to call the methods from web service whose reference you have added by adding wsdl file or generated proxy from wsdl?
First you have to add service reference you can do that by adding the url of the service you are calling.
Then you can consume the methods from that service.
Please check this link-
http://johnwsaunders3.wordpress.com/2009/05/17/how-to-consume-a-web-service/