Best Approach to Handle User Rights in Desktop Applications

I'm currently developping some desktop applications (WinForm) with 开发者_开发百科a couple of screens, however i need to handle user rights.

Desktop Application :

Screen : Customers (GridView) (View/Edit/Create)

Some users are allowed to View only Customers, but some other users are allowed to Edit/Create Customers.

How can i implement a "screen user rights" ?

Thanks.