public ActionResult Create([Bind(Include = "MaHDT,TenHDT,GhiChu")] HeDaoTao heDaoTao)
        {
            if (ModelState.IsValid)
            {
                contextHDT.Create(heDaoTao);
                return(RedirectToAction("Index"));
            }

            return(View(heDaoTao));
        }