Question

Have looked at all the posts on here and none of them are fixing my issue.

I Hit the URL: /Users/KickOutUser

public void KickOutUser()
        {
            TempData["ErrorMessage"] = "You need to be logged in to access that content";
            //Redirect to Login
            RedirectToAction("Login");
        }

        /*user controller*/
        public ActionResult Login()
        {
            //E.G ErrorMessage comes from HandleUnauthenticatedUser 
            ViewData["ErrorMessage"] = TempData["ErrorMessage"] ?? null;
            return View();
        }

With debugging, I can see it hit the first method, then redirect, but the redirect call never calls the Login method, and I end up with a blank view..

Answer 1

public void KickOutUser()

This method is not returning anything, read this

So in this case, what you can do is return ActionResult or better ViewResult like as shown below,

    public ActionResult KickOutUser()
    {
        TempData["ErrorMessage"] = "You need to be logged in to access that content";
        //Redirect to Login
        return RedirectToAction("Login");
    }

Hope this helps 🙂