User.IsInRole doesn't work

Question

I have ASP.NET MVC 4 application. I use Simple Membership Provider allowing to tick remember me checkbox under login form. If ticked, persitent cookie .ASPXAUTH is created w

Answer 1

I've been struggling with the MVC5 role manager for some time now. I've verified that User.IsInRole can return different results at the same time, and apparently this is because the User object is cached and needs to be invalidated. One way to do this is to log out and log back in again as one of the answers here specified. Just throw this in the controller that adds the new role:

        UserManager.AddToRole(User.Identity.GetUserId(), "Administrator");

        var updatedUser = await UserManager.FindByNameAsync(User.Identity.Name);
        var newIdentity = await updatedUser.GenerateUserIdentityAsync(UserManager);
        AuthenticationManager.SignOut();
        AuthenticationManager.SignIn(newIdentity);

However, if the user has your application open in other windows this won't update all of them.