partial void Deletewarranty_detail(warranty_detail instance);
partial void Updatewarranty_detail(warranty_detail instance);
private void detach_warranty_details(warranty_detail entity) { this.SendPropertyChanging(); entity.warranty = null; }
partial void Insertwarranty_detail(warranty_detail instance);
private void attach_warranty_details(warranty_detail entity) { this.SendPropertyChanging(); entity.product = this; }