public override bool save() { if (!isValid(new List<string>() { "lID"})) return false; string sqlCommand = String.Format(@"insert into Label (pID,lContent,lMapLayerName,lIsChoosed) values ({0}, '{1}', '{2}',{3})" , pID, lContent, lMapLayerName, lIsChoosed ? 1 : 0); Sql sql = new Sql(); return sql.insertLabel(sqlCommand); }