public ActionResult ThemHangSX([Bind(Include = "TenHang,TruSoChinh,QuocGia")] HangSanXuat loai)
        {
            HangSanXuatModel spm = new HangSanXuatModel();

            if (ModelState.IsValid && spm.KiemTraTen(loai.TenHang))
            {
                string maloai = spm.ThemHangSX(loai);
                return(View("Index"));
            }
            return(View("Index", loai));
        }
        public ActionResult ThemHangSX([Bind(Include = "TenHang,TruSoChinh,QuocGia")] HangSanXuat loai)
        {
            HangSanXuatModel spm = new HangSanXuatModel();

            if (ModelState.IsValid && spm.KiemTraTen(loai.TenHang))
            {
                TempData["AddSuccess"] = "oke";
                string maloai = spm.ThemHangSX(loai);
                return(View("Index"));
            }
            TempData["ErrorAdd"] = "Lỗi";
            return(View("Index", loai));
        }