public IActionResult CreateGoiQuangCao(string item_them_ma, string item_them_vitriquangcao, double item_them_tongtien, int item_them_thoiluong)
        {
            GoiQuangCaoBUS goi      = new GoiQuangCaoBUS();
            string         thongbao = goi.CreateGoiQuangCao(item_them_ma, item_them_vitriquangcao, item_them_tongtien, item_them_thoiluong);

            return(RedirectToAction("Index", "GoiQuangCao", new { thongbao = thongbao }));
        }