Fedex Rate WebService Service Method call on monodevelop

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http://stackoverflow.com – I'm working on monodevelop(2.10) to develop a web application on Linux(Ubuntu), in which i'm trying to call a Fedex Rate Webservice(a wsdl file to get Fedex rate for shipping ) method but i did got any value instead it should be return rate of shipping for something.Can anyone tell, whether Fedex web service works on monodevelop..? .If anyone need source code i can send. Please help me !!!!!!! (HowTos)