public IActionResult Edit(int id, MAT_HANG hangVM)
        {
            var hang = _database.MAT_HANG.FirstOrDefault(k => k.MaMH == id);

            hang.TenMH      = hangVM.TenMH;
            hang.SoLuongTon = hangVM.SoLuongTon;
            hang.DonGiaXuat = hangVM.DonGiaXuat;
            _database.SaveChanges();
            return(RedirectToAction("Index", "MatHang"));
        }
        /*   public ActionResult Create()
         * {
         *     List<Account>  lst=(List<Account>)Session["lst"];
         *     lst.Add
         *
         *     //gọi model để thêm mới acc
         *     return RedirectToAction("Index");
         * } */

        public ActionResult Edit(string id)
        {
            MAT_HANG lst = new MAT_HANG();

            lst.MAMATHANG  = id;
            lst.TENMATHANG = "sanpham";
            lst.SOLUONG    = 100;
            lst.DONGIA     = 1000;
            lst.MANCC      = "NCC";
            lst.MALOAI     = "LOAI";
            return(View(lst));
        }
        public IActionResult Edit(int id)
        {
            var      hang          = _database.MAT_HANG.FirstOrDefault(ch => ch.MaMH == id);
            MAT_HANG hangViewModel = new MAT_HANG()
            {
                TenMH      = hang.TenMH,
                SoLuongTon = hang.SoLuongTon,
                DonGiaXuat = hang.DonGiaXuat,
            };

            return(View(hangViewModel));
        }
 public IActionResult Add(MAT_HANG newHang)
 {
     if (ModelState.IsValid)
     {
         _database.MAT_HANG.Add(newHang);
         _database.SaveChanges();
         return(RedirectToAction("Index", "MatHang"));
     }
     else
     {
         return(View(newHang));
     }
 }
 public ActionResult Delete(MAT_HANG mh)
 {
     return(RedirectToAction("Index"));
 }