private void detach_Tournament(Tournament entity)
		{
			this.SendPropertyChanging();
			entity.Location = null;
		}
 partial void DeleteTournament(Tournament instance);
 partial void InsertTournament(Tournament instance);
 partial void UpdateTournament(Tournament instance);
		private void attach_Tournament(Tournament entity)
		{
			this.SendPropertyChanging();
			entity.Sport = this;
		}