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We have recently added new topics to the Entity Framework documentation. The new topics address frequently asked questions about working with entity keys and enabling scenarios that require manual editing of an .edmx file. Let us know if you find these topics helpful, or how we could make them more helpful:
Working with Entity Keys
How to: Create an EntityKey
How to: Add a Defining Query How to: Edit Inferred Entity Keys How to: Work with Store-Generated Column Values How to: Map a GUID Property to a Binary Column How to: Define Custom Functions in the Storage Model
The Entity Framework User Education Team