partial void DeleteChiTietHoaDon(ChiTietHoaDon instance);
partial void UpdateChiTietHoaDon(ChiTietHoaDon instance);
private void detach_ChiTietHoaDons(ChiTietHoaDon entity)
{
this.SendPropertyChanging();
entity.HoaDon = null;
}
partial void InsertChiTietHoaDon(ChiTietHoaDon instance);
private void attach_ChiTietHoaDons(ChiTietHoaDon entity)
{
this.SendPropertyChanging();
entity.HoaDon = this;
}