public HoadonLogCollection FetchByQuery(Query qry)
        {
            HoadonLogCollection coll = new HoadonLogCollection();

            coll.LoadAndCloseReader(qry.ExecuteReader());
            return(coll);
        }
        public HoadonLogCollection FetchAll()
        {
            HoadonLogCollection coll = new HoadonLogCollection();
            Query qry = new Query(HoadonLog.Schema);

            coll.LoadAndCloseReader(qry.ExecuteReader());
            return(coll);
        }