public static DataTable GetPointByDevClassID(int DevClassID) { IList <Jc_DefInfo> list = new List <Jc_DefInfo>(); list = ClientAlarmModle.QueryPointByDevClassIDCache(DevClassID); if (list == null || list.Count < 1) { return(null); } DataTable dt = new DataTable(); dt.Columns.Add("txt", typeof(string)); dt.Columns.Add("val", typeof(string)); foreach (var item in list) { DataRow dr = dt.NewRow(); dr[0] = item.Point + ":" + item.Wz; dr[1] = item.Point; dt.Rows.Add(dr); } return(dt); }