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Asked: 2026-05-24T01:11:58+00:00

I want to use MVC 3 and the Entity Framework for my application. The

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I want to use MVC 3 and the Entity Framework for my application.

The model will be stored in a different assembly to the MVC app.

The choice I’m making is either to use the EF to generate my entities or to use code first.

With code first, I can decorate members with [Required] etc… But how would I go about adding those attributes if EF has generated entities from the DB?

Having EF generate my entities will save a lot of time, but I want MVC to auto populate the validation depending on how I’ve decorated my members. Does this make sense? If so, how would I do that?

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  1. Editorial Team

    In that case, MetadataTypeAttribute is used. You can combine it with partial classes to achieve desired results

    And by the way, in your place i would do more research when deciding between using Database First and Code First designs. That all is not about saving time when generating entities, there’s much more difference between those two approaches. For the time saving purpose, you can use EF Power Tools to generate code first entities from database – simple.

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