public ActionResult SuaPhiVC(TinhThanh tinh)
        {
            if (!Models.User.CurrentUser.Quyen.CoChucNang("sua_phi_van_chuyen"))
            {
                return RedirectToAction("Error", "Admin");
            }
            try
            {
                if (ModelState.IsValid)
            {
                db.Entry(tinh).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("QLPhiVanChuyen");
            }
            }
            catch (Exception ex)
            {

            }
            return View();
        }
 public ActionResult ThemPhiVC(TinhThanh tinh)
 {
     if (!Models.User.CurrentUser.Quyen.CoChucNang("them_phi_van_chuyen"))
     {
         return RedirectToAction("Error", "Admin");
     }
     if (ModelState.IsValid)
     {
         db.TinhThanhs.Add(tinh);
         db.SaveChanges();
         return RedirectToAction("QLPhiVanChuyen");
     }
     return View();
 }