private void detach_PlayerStrategies(PlayerStrategy entity)
 {
     this.SendPropertyChanging();
     entity.Strategy = null;
 }
 partial void DeletePlayerStrategy(PlayerStrategy instance);
 private void attach_PlayerStrategies(PlayerStrategy entity)
 {
     this.SendPropertyChanging();
     entity.Player = this;
 }
 partial void UpdatePlayerStrategy(PlayerStrategy instance);
 partial void InsertPlayerStrategy(PlayerStrategy instance);