partial void DeleteKat_zach(Kat_zach instance);
partial void UpdateKat_zach(Kat_zach instance);
private void detach_Kat_zach(Kat_zach entity)
{
this.SendPropertyChanging();
entity.TypeKatZach = null;
}
partial void InsertKat_zach(Kat_zach instance);
private void attach_Kat_zach(Kat_zach entity)
{
this.SendPropertyChanging();
entity.TypeKatZach = this;
}