how to consume a bool and dictionary values in wp7 using silverlight returned by wcf service?

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Mobile

WCF

Silverlight

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hello,
i am developing a wp7 application. i have written a wcf service which returns a bool value
example :

[ServiceContract]
   public interface IService1
   {
       [OperationContract]  
       bool LoginUser(UInt16 mobileNO, string password);
       
       [OperationContract] 
       Dictionary>string, string> GetItemNames(UInt16 mobileNO, string password);
    } 

the LoginUser verifies if user entered password is right and send true/false.
how can i consume this value in my mobile application?

also how can i consume a dictionary in my mobile application?

kindly help me..
thanks in advance
bindu