partial void DeleteLichSuGia(LichSuGia instance);
partial void UpdateLichSuGia(LichSuGia instance);
private void detach_LichSuGias(LichSuGia entity) { this.SendPropertyChanging(); entity.HangHoa = null; }
partial void InsertLichSuGia(LichSuGia instance);
private void attach_LichSuGias(LichSuGia entity) { this.SendPropertyChanging(); entity.HangHoa = this; }