public ActionResult Edit(UserPassChangeModel mod)
 {
     if (ModelState.IsValid)
     {
         string name = User.Identity.Name;
         var user = (from u in db.users where u.Login == name select u).First();
         string hash = GetEncriptedPassword(mod.aktualneHaslo);
         if (user.Haslo == GetEncriptedPassword(mod.aktualneHaslo))
         {
             user.Haslo = GetEncriptedPassword(mod.haslo);
             db.SaveChanges();
             return RedirectToAction("Index", "Home");
         }
         else
         {
             mod.komunikat = "Błędne hasło !";
             return View(mod);
         }
     }
     else
         mod.komunikat = "Błęd";
     return View(mod);
 }
        public ActionResult Edit()
        {
            model= new UserPassChangeModel();

            return View(model);
        }