private void ThemXeXinDiemDo()
        {
            if (IsValid())
            {
                lienlac.GSX_BaoDiemTra(txtSoHieu.GetColumnValue("SoHieuXe").ToString(),
                                       txtSoHieu.GetColumnValue("MaLaiXe").ToString(),
                                       txtSoHieu.GetColumnValue("TenLaiXe").ToString(),
                                       deThoiDiem.DateTime,
                                       lVungDieuHanh.GetColumnValue("NameVungDH").ToString(),
                                       int.Parse(lVungDieuHanh.GetColumnValue("Id").ToString()),
                                       Taxi.Business.ThongTinDangNhap.USER_ID,
                                       0,
                                       Guid.NewGuid().ToString());

                this.Close();
            }
        }