public class HomeController : Controller
    {
        //
        // GET: /Home/
        public string x = null;
        public ActionResult Index()
        {
            if (x == null)
            {
                x = "11";
            }
            else
            {
                x = "22";
            }
            if (HttpContext.User.Identity.Name != "")
            {
                return View("Index");//, HttpContext.User.Identity.Name);
            }
            ViewBag.test = x;
            return View();
        }

    }