public ActionResult get_DashboardMonitoring(string bdate)
        {
            PatientStatisticsDB    _DB = new PatientStatisticsDB();
            DailyDashboardMonModel _RE = _DB.get_DashboardMonitoring(bdate);
            var serializer             = new JavaScriptSerializer {
                MaxJsonLength = Int32.MaxValue
            };
            var result = new ContentResult
            {
                Content     = serializer.Serialize(new { Res = _RE ?? new DailyDashboardMonModel() }),
                ContentType = "application/json"
            };

            return(result);
        }