*Result and *ResultSpecified parameters in WCF service?

Question

In my WCF Service I have a function, for example:

bool ValidateLogin(string user, string password)

after I hosted it in windows azure and a

Answer 1

In your client project, ensure that you chosen 'Add Service Reference' instead of 'Add Web Reference'. 'Add Service Reference' uses WCF while 'Add Web Reference' does not and compensates for optional parameters by adding the '[paramName]Specified' additional parameters.