partial void Deleteuser_email(user_email instance);
partial void Updateuser_email(user_email instance);
private void detach_user_emails(user_email entity) { this.SendPropertyChanging(); entity.sns_user = null; }
partial void Insertuser_email(user_email instance);
private void attach_user_emails(user_email entity) { this.SendPropertyChanging(); entity.sns_user = this; }