partial void DeleteHoaDon(HoaDon instance);
partial void UpdateHoaDon(HoaDon instance);
private void detach_HoaDons(HoaDon entity) { this.SendPropertyChanging(); entity.Ban = null; }
partial void InsertHoaDon(HoaDon instance);
private void attach_HoaDons(HoaDon entity) { this.SendPropertyChanging(); entity.Ban = this; }