(For others reading this thread, note that this is different from an injected base class, which is purely a .NET object model concept that is independent from the data store - and works just fine.)

 

 

What i have noticed during my evaluation of DevForce is that the Person entityquery in your case can return all derived classes of Person.

To retrieve the User objects i used a query something like this:

 

var q = from p in manager.Persons

            where p is User

            select p;

 

I couldnt find OfType linq support.

I didnt test if all Person objects where transfed over the wire or that only Users where transferd.

 

Correct me if im wrong, im a newbie.

 

Hth, best regagrds,

Nico Schoemaker