I am afraid I might have misled you in my first post. The .Count query actually results in a count statement on the server side and thus no additional records are returned. This said the query you are using so far should be perfectly fine and should not pose any performance overhead to your application.
All the best,
the Telerik team
Follow @OpenAccessORM Twitter channel to be the first one to get the latest updates on new releases, tips and tricks and sneak peeks at our product labs!