public TblYeucauXetnghiemVnioCollection FetchAll()
 {
     TblYeucauXetnghiemVnioCollection coll = new TblYeucauXetnghiemVnioCollection();
     Query qry = new Query(TblYeucauXetnghiemVnio.Schema);
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public TblYeucauXetnghiemVnioCollection FetchByQuery(Query qry)
 {
     TblYeucauXetnghiemVnioCollection coll = new TblYeucauXetnghiemVnioCollection();
     coll.LoadAndCloseReader(qry.ExecuteReader());
     return coll;
 }
 public TblYeucauXetnghiemVnioCollection FetchByID(object IdXetnghiem)
 {
     TblYeucauXetnghiemVnioCollection coll = new TblYeucauXetnghiemVnioCollection().Where("Id_Xetnghiem", IdXetnghiem).Load();
     return coll;
 }