partial void Deletemessages(messages instance);
 partial void Updatemessages(messages instance);
		private void detach_messages(messages entity)
		{
			this.SendPropertyChanging();
			entity.users = null;
		}
 partial void Insertmessages(messages instance);
		private void attach_messages(messages entity)
		{
			this.SendPropertyChanging();
			entity.users = this;
		}