private void RecordReportList(string CustId, int YY, string ReportNO)
        {
            var db = new EnergyNetEntities();
            var item = db.ReportList_2015.Find(new object[] { CustId, YY, ReportNO });
            if (item == null)
            {
                var md = new ReportList_2015();
                md.YY = YY;
                md.CustID = CustId;
                md.ReportNO = ReportNO;
                md.FinalDate = DateTime.Now;
                db.ReportList_2015.Add(md);
            }
            else {
                item.FinalDate = DateTime.Now;
            }

            db.SaveChanges();
            db.Dispose();
        }