public KetnoiHisDanhmucDvuCollection FetchAll()
 {
     KetnoiHisDanhmucDvuCollection coll = new KetnoiHisDanhmucDvuCollection();
     Query qry = new Query(KetnoiHisDanhmucDvu.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public KetnoiHisDanhmucDvuCollection FetchByQuery(Query qry)
 {
     KetnoiHisDanhmucDvuCollection coll = new KetnoiHisDanhmucDvuCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public KetnoiHisDanhmucDvuCollection FetchByID(object Id)
 {
     KetnoiHisDanhmucDvuCollection coll = new KetnoiHisDanhmucDvuCollection().Where("ID", Id).Load();
     return coll;
 }