partial void DeleteUSER_MARK(USER_MARK instance);
 partial void UpdateUSER_MARK(USER_MARK instance);
	private void detach_USER_MARKs(USER_MARK entity)
	{
		this.SendPropertyChanging();
		entity.USER = null;
	}
 partial void InsertUSER_MARK(USER_MARK instance);
	private void attach_USER_MARKs(USER_MARK entity)
	{
		this.SendPropertyChanging();
		entity.USER = this;
	}