How do you disable caching with WebClient and Windows Phone 7

Question

I am making a call to a REST web service and the mobile app is retrieving the results from its cache and not going to the server.

I have seen other suggested fixes (

Answer 1

I've hit this problem too on overflow 7 talking to StackApps - the only thing I could think of was to add an addition random variable to the end of the HTTP/REST request.