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

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

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