public ActionResult Login(LoginVM model)
        {
            try {
                if (ModelState.IsValid)
                {
                    BACommercesEntities1 db = new BACommercesEntities1();

                    var user = db.Users.FirstOrDefault(x => x.Email == model.Email && x.Password == model.Password);
                    Session["UserName"] = user.UserName;

                    if (user != null)
                    {
                        FormsAuthentication.SetAuthCookie(user.UserName, true);
                        return(RedirectToAction("Index", "Home"));
                    }
                }
            }
            catch { ViewBag.Message = "Kullanıcı Adı veya Parola Yanlış."; }


            return(View());
        }