CODEWITHSUNDEEP
asp.net-mvcrazor
Jim H
Jim H

Reputation: 294

Editing only a partial model in ASP.Net MVC

I'm quite new to MVC, and stumbled on a problem. I've googled a lot but couldn't find a solution.

I'm using ASP.Net Membership with roles.

Lets say I have a model of a product with attributes:

How can I implement this so different roles cab only be allowed to edit parts of the object? (Let's say one role cannot change the category of a product, for example.)

Is it possible to have different Views for the same Model or different Models for the same object?

If I leave out some of the properties, they will have NULL value when I save them. I tried using @HTML.HiddenFor(...) but then the validation for those fields failed.

Upvotes: 2

Views: 1153

Answers (1)

Judo
Judo

Reputation: 5247

A ViewModel sounds like it would do the trick. For all but the most trivial of scenarios, you will get into problems when you tightly couple the Model and the View.

If you havent used them before, a ViewModel is simply a class (model) for the specific view you are rendering. You can customize required properties and validation on the ViewModel and then bind it to the Model, so the structure is most more flexible and easy to work with.

There is a detailed intro at ViewModels http://kazimanzurrashid.com/posts/asp-dot-net-mvc-viewmodel-usage-and-pick-your-best-pattern

EDIT

You could then have a ViewModel for each of the role, although if you are only looking to protect a property from being updated by certain roles there should be other solutions such as setting the html input to disabled and then testing on the server that the category value is still in its original state (note you should always perform such a test as the Post request can be altered).

Upvotes: 3

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