I got a class like this which gets returned from an ASP webservice:

class Data {

public int A { get; set; }

public int B { get; set; }

public int Sum { get { return A + B; } }

}

When I try to consume the webservice on the client side using Silverlight I only get the properties A and B but I also need Sum. I know I can't return any logic from a webservice, so the expected behavior was it will return the the Sum as a fixed/precalculated property in the client which is what I need.

Any ideas except for redesigning my class?

Thanks ...