Entity Framework 5 Code First. How to specify the tables that I would like to drop?

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I want to drop some tables and create again following my models design. But the CodeFirst never do it, keeping trying to apply the changes that I did, but for some reason he can't. The Designs of models class is ok but the tables on SQL is not and thats why and want to drop and recreate again. I need to keep the data of all others tables.

I did some changes on model and especially with keys and Foreign Keys. So why I think if I could set which tables I would like to drop, code first will Understand my new implementation.

Erro output update-database

Unable to determine the principal end of an association between the types 'Target.Data.Model.TacticalGoal' and 'Target.Data.Model.ICB'. The principal end of this association must be explicitly configured using either the relationship fluent API or data annotations.

Posted 3-Apr-14 23:12pm

Alcides Melo

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Er. Puneet Goel · Answer 1 · 2014-04-04T23:58:00

Solution 1

Just Start from this :

Entity-Framework-Sample-Application-for-Beginners

Posted 4-Apr-14 23:58pm

Er. Puneet Goel

Dave Kreskowiak · Answer 2 · 2014-04-05T02:25:00

Solution 2

Google for "entity framework 5 code first migrations" and you'll find what you're looking for.

Posted 5-Apr-14 2:25am

Dave Kreskowiak