partial void DeleteDirectMessage(DirectMessage instance);
 partial void UpdateDirectMessage(DirectMessage instance);
		private void detach_DirectMessage1(DirectMessage entity)
		{
			this.SendPropertyChanging();
			entity.User1 = null;
		}
 partial void InsertDirectMessage(DirectMessage instance);
		private void attach_DirectMessage(DirectMessage entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}