Entity Framework. Noob question: How do you refresh the model when the db changes?

Question

If you build the edmx file from the database and then the db changes, how do you get the model to pick up the change?

Do you delete the whole model and regenerate or can you detect changes?

I see a post mentioning a "Update Your Model" rt. mouse command on the edmx file, but I dont see it.

http://stackoverflow.com/questions/690248/updating-your-edmx-to-reflect-changes-made-in-your-db-net-linq-to-entities

I'm just starting out...

Answer 1

Are you looking at the designer or code view? You can force the designer to open by right clicking on your EDMX file and selecting Open With -> ADO.NET Entity Data Model Designer

Right click on the designer surface of the EDMX designer and click Update Model From Database...

All entities are refreshed by default, new entities are only added if you select them.

Answer 2

I have found the designer "update from database" can only handle small changes. If you have deleted tables, changed foreign keys or (gasp) changed the signature of a stored procedure with a function mapping, you will eventually get to such a messed up state you will have to either delete all the entities and "add from database" or simply delete the edmx resource and start over.