Comments on: Entity Framework Modeling: Table Per Type Inheritance

By: Matt Penner

Matt Penner — Wed, 17 Aug 2011 22:42:02 +0000

Hey Rob, I needed to implement inheritance on a few of my entities and found this post. It was great! Straight to the point and very easy to follow. I already had a lot of data in the production database so if only migrating the data with the new keys and dependencies was as easy.

Anyway, it all worked out great. Thanks!

By: Nauman Ahmed

Nauman Ahmed — Fri, 05 Aug 2011 13:39:21 +0000

thanks, very descriptive.

By: admin

admin — Tue, 29 Jun 2010 17:26:36 +0000

You need to delete the key property from the 2 derived types.

By: David

David — Tue, 29 Jun 2010 11:03:47 +0000

Thanks, it was very helpful

By: Daniel

Daniel — Fri, 25 Jun 2010 17:47:27 +0000

Excellent post! Very useful and easy to understand.
I followed and all seems to work. However when I validated the Model I get an Error 3034 saying that the column PersonID from Person is mapped by three entities with different key. (I suppose those three entities are Student, Instructor and Admin) and that I must ensure those doesn’t overlap
Do you know why is that happening?

By: Manitra

Manitra — Mon, 19 Oct 2009 11:54:41 +0000

Hello,

Thanks for this great article, it’s an excellent start point for dealing with inhenritance in the entity framework.

Manitra.