How can I assign a value to HttpContext.User in ASP.NET MVC?

I write a controller like below:

public class AccountController : Controller
{
    public ActionResult Login(/*---*/)
    {
        GenericIdentity identity = new GenericIdentity开发者_如何学编程("userName");
        GenericPrincipal principal = new GenericPrincipal(identity, new string[] { "role1", "role2" });
        this.HttpContext.User = principal;
        /*---*/;
    }
}

After login, I can get user name by User.Identity.Name in other controller. But User.IsInRole("role1") always return false.

How can I assign a value to User, I don't want to use Membership...

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You need to persist the user data somewhere so that all subsequent page requests have access to it. Usually you would create an authentication ticket and store it in a cookie. Then for each request you extract the data and create your IPrincipal. This can be done in the Application_AuthenticateRequest method of Global.ascx,

MVC - How to store/assign roles of authenticated users has more information on a simple way to do what you want.

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Hm.

Using membership?

At least the lower level API. You need to assign it a principal in some event (which basically turns into a cookie and is deserialized with every call).

Details are in http://support.microsoft.com/kb/306590

Or also in http://msdn.microsoft.com/en-us/library/aa302399.aspx