Webforms data binding with EF Code-First Linq query error

Question

In this example here, Scott shows doing a Linq query against the dbContext and binding the result directly to a GridView to show a list of products. His example is using the

Answer 1

In looking at the EF4 Feature CTP4 release dll in Reflector, I can see that its DBQuery object does not implement IListSource.GetList() and throw an exception as the EF 4.1 dll does. I guess somewhere along the line they had a reason to no longer allow binding directly to the query, even though it implements IEnumerable.

This does not answer WHY they made this change, but at least I can see that there is a reason it would work in the older version.