private void detach_akuns(akun entity)
 {
     this.SendPropertyChanging();
     entity.role1 = null;
 }
 private void attach_akuns(akun entity)
 {
     this.SendPropertyChanging();
     entity.role1 = this;
 }
 partial void Updateakun(akun instance);
 partial void Deleteakun(akun instance);
 partial void Insertakun(akun instance);