Thanks to Mark Coffman: http://markcoffman.com/2008/05/27/linq-results-for-paging-in-a-datagrid.aspx

When using binding a gridview to a LINQ result, make sure you return it to a List<T> (I’m assuming any IEnumerable<T> would work, but I really like the List<T>) to prevent yourself from getting

The datasource does not support server-side data paging.

Note that this is for easy paging.  If you want to do true data-paging with LINQ obviously you need to utilize the Skip() and Take() methods to get back just the data you want to show.

But I’m lazy… :)