public string GetSubTableData()
        {
            string secondtable              = Request["secondtable"];
            string primarytablefiled        = Request["primarytablefiled"];
            string secondtableprimarykey    = Request["secondtableprimarykey"];
            string primarytablefiledvalue   = Request["primarytablefiledvalue"];
            string secondtablerelationfield = Request["secondtablerelationfield"];
            string dbconnid = Request["dbconnid"];

            LitJson.JsonData data = new BizProcess.Platform.WorkFlow().GetSubTableData(dbconnid, secondtable, secondtablerelationfield, primarytablefiledvalue, secondtableprimarykey);
            return(data.ToJson());
        }