Hi, John.

>Both DataSets and Entities offer change tracking if you stay connected to the data.
>
>In April 2007, Entities lose change tracking if you disconnect from the data. Typed DataSets keep their change tracking which makes them suitable for passing between tiers for selective updates. I'm very much a student but I can already do a selective update using a typed DataSet.

I'm not sure what do you mean with "if you disconnect from the data". The entity framework works disconnected all the time. There is no persistent connection at all. An entity can keep shadow track of what's changed. What I didn't see is any mechanism -by now- to automatically build the update/insert operation so that only changed fields get sent.

Maybe I got something lost in the long thread. If you tell me what is what you saw, maybe we can go deeper in the issue together. I'm working with that anyway, so it is not a problem for me to check anything.

Regards,