public IActionResult OnPostQueryTrialLog(string fromDate, string toDate, string tecCode, int pageIndex, int pageSize) { ResultList <RTrialLog> result = new ResultList <RTrialLog>(); try { int recordTotal; result.List = _CourseSrv.QueryTrialLogList_BackEnd(fromDate, toDate, out recordTotal, tecCode, pageIndex, pageSize); result.RecordTotal = recordTotal; } catch (Exception ex) { result.ErrorMsg = ex.Message; } return(new JsonResult(result)); }