public TThuocCapphatChitietCollection FetchAll()
 {
     TThuocCapphatChitietCollection coll = new TThuocCapphatChitietCollection();
     Query qry = new Query(TThuocCapphatChitiet.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public TThuocCapphatChitietCollection FetchByQuery(Query qry)
 {
     TThuocCapphatChitietCollection coll = new TThuocCapphatChitietCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public TThuocCapphatChitietCollection FetchByID(object IdCtiet)
 {
     TThuocCapphatChitietCollection coll = new TThuocCapphatChitietCollection().Where("id_ctiet", IdCtiet).Load();
     return coll;
 }