public static bool AddNewConfig(RoomConfig rc)
        {
            int group  = rc.group;
            int row    = rc.row;
            int column = rc.column;

            return(AddNewConfig(group, row, column));
        }
        public static string getRoomConfigJson()
        {
            List <RoomConfig> list = new List <RoomConfig>();
            int totalCount         = dtRoomConfig.Rows.Count;

            for (int i = 0; i < totalCount; i++)
            {
                DataRow    dr = dtRoomConfig.Rows[i];
                RoomConfig rc = new RoomConfig((int)dr["IGROUP"], (int)dr["IROW"], (int)dr["ICOLUMN"]);
                list.Add(rc);
            }

            return(JsonConvert.SerializeObject(list));
        }