Entity Framework, Entity Model creation clarification

Question

I'm trying to learn ASP.NET MVC + Entity Framework by developing a small project. I have created basic structure of Database as required & now trying to Connect database to the MVC project.

When I check few MVC EF tutorials, There are two methods to create entity classes to map Database (as I understood) :

Creating EDMX file using existing database
Creating Entity Classes manually as required

What I need to clarify is whether there is any difference in using these methods (limitations, advantages, or disadvantages)?

Sorry if I'm asking something very simple or irrelevant...

You mean this? http://stackoverflow.com/questions/5446316/ef-4-1-code-first-vs-model-database-first. Also, there are technically 3 approaches, as the accepted answer explains — PinnyM, Apr 03 '12 at 04:29
@PinnyM Thanks for the link. I guess what I'm doing is "Database first" so what if I create the entities manually, is it unnecessary? and if I create EDMX file can I add business logic to the same classes generated by the VS? — Nalaka526, Apr 03 '12 at 04:51
You can create the entities manually, sure. But why would you do that over using generated partial classes? And modifying the generated classes is usually a bad idea, because you can't safely regenerate them upon modifying the database. You would either create a customized T4 template or a partial class for your business logic. The link above deals with all this, by the way... — PinnyM, Apr 03 '12 at 04:54

score 0 · Accepted Answer · answered Apr 03 '12 at 04:51

You can check :

All these will teach you about options how to approach Entity Framework's model.

Entity Framework, Entity Model creation clarification

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