Read original post by Glenn Gailey at Writing...Data Services
I’ve long missed support for calling service operations by using the proxy client code-generated by WCF Data Services, and I’ve described some workarounds in the post Calling Service Operations from the WCF Data Services Client. This is why I was excited to discover that the new T4 template, which I introduced in my previous post New and Improved T4 Template for OData Client and Local Database, now supports calling service operations as a first class behavior.