partial void DeleteSach(Sach instance);
partial void UpdateSach(Sach instance);
private void detach_Saches(Sach entity) { this.SendPropertyChanging(); entity.NXB = null; }
partial void InsertSach(Sach instance);
private void attach_Saches(Sach entity) { this.SendPropertyChanging(); entity.NXB = this; }