partial void DeleteOpponent(Opponent instance);
 partial void UpdateOpponent(Opponent instance);
		private void detach_Opponents(Opponent entity)
		{
			this.SendPropertyChanging();
			entity.Account = null;
		}
 partial void InsertOpponent(Opponent instance);
		private void attach_Opponents(Opponent entity)
		{
			this.SendPropertyChanging();
			entity.Account = this;
		}