How to know the current user identity

Question

In an mvc .net web application that uses forms authentication, how to know the current user identity in controllers?

Answer 1

You could use User.Identity.Name:

[Authorize]
public ActionResult SomeAction()
{
    string currentlyLoggedInUsername = User.Identity.Name;
    ...
}

Answer 2

  this.HttpContext.User.Identity

Note that you should also check if

  this.HttpContext.User.Identity.IsAuthenticated

to distinguish between anonymous and authenticated users.