private void XoaThucDon()
    {
        string strMaThucDon = (string)Request["MaThucDon"];

        int        maThucDon = int.Parse(strMaThucDon);
        ThucDonBUS bus       = new ThucDonBUS();
        bool       flag      = bus.XoaThucDon(maThucDon);

        XL_THE        the       = new XL_THE("goc");
        XL_THUOC_TINH thuoctinh = new XL_THUOC_TINH("kq", flag ? "1" : "0");

        the.Danh_sach_thuoc_tinh.Add(thuoctinh);
        string chuoi = the.Chuoi();

        XL_CHUOI.XuatChuoi(Response, chuoi);
    }