private void detach_Quyen_HoatDongs(Quyen_HoatDong entity)
 {
     this.SendPropertyChanging();
     entity.HoatDong = null;
 }
 partial void DeleteQuyen_HoatDong(Quyen_HoatDong instance);
 partial void InsertQuyen_HoatDong(Quyen_HoatDong instance);
 partial void UpdateQuyen_HoatDong(Quyen_HoatDong instance);
 private void attach_Quyen_HoatDongs(Quyen_HoatDong entity)
 {
     this.SendPropertyChanging();
     entity.Quyen = this;
 }