public ActionResult Set(Guid id, Double lat, Double lng)
        {
            using (DataContext dataContext = new DataContext())
            {
                Station station = dataContext.Stations.Find(id);
                if (station == null)
                {
                    return(this.Json(new { success = false, message = "Station not found`" }));
                }

                HandledStation handledStation = dataContext.HandledStations.FirstOrDefault(q => q.StationID == id);
                if (handledStation == null)
                {
                    handledStation = new HandledStation()
                    {
                        StationID  = id,
                        UpdateTime = DateTime.Now
                    };

                    dataContext.HandledStations.Add(handledStation);
                }

                station.Lat = lat;
                station.Lng = lng;

                dataContext.SaveChanges();

                return(this.Json(new { success = true }));
            }
        }
        public ActionResult Set(Guid id, Double lat, Double lng)
        {
            using (DataContext dataContext = new DataContext())
            {
                Station station = dataContext.Stations.Find(id);
                if (station == null)
                {
                    return this.Json(new { success = false, message = "Station not found`" });
                }

                HandledStation handledStation = dataContext.HandledStations.FirstOrDefault(q => q.StationID == id);
                if (handledStation == null)
                {
                    handledStation = new HandledStation()
                    {
                        StationID = id,
                        UpdateTime = DateTime.Now
                    };

                    dataContext.HandledStations.Add(handledStation);
                }

                station.Lat = lat;
                station.Lng = lng;

                dataContext.SaveChanges();

                return this.Json(new { success = true });
            }
        }