Window Phone SOAP object Returns Null

Question

HI

Please help me to find solution on windows phone .

I just Started work on windows phone and doing communication with web services made in JAVA/SOAP.I successfully called Method for Login using Services as i can see on server side as server responding properly on XML format object from server side. when i  try to use or call it member on client side it always generating null exception.

Any one help me for this.