private DataTable queryData()
    {
        VGRModel.MaintainChanReturnData BCO = new PIC.VDS2G.LGT.VGR.MaintainChanReturnData(ConntionDB);
        ParameterList.Clear();

        //if (Request.QueryString["ID"] != null)
        //{
        //    ParameterList.Add(Request.QueryString["ID"].ToString());
        //}
        //else
        //{
        //    ParameterList.Add(CraeteMainID);
        //}

        ParameterList.Add(Session["UID"].ToString());

        DataTable Dt = BCO.GetImpErrData(ParameterList);
        return Dt;
    }