//Update
        public bool UpdateExistingBarbecue(string originalVenue, Barbecue newBarbecue)
        {
            //target correct barbecue
            Barbecue oldBarbecue = GetBarbecueByVenue(originalVenue);

            //Update barbecue
            if (oldBarbecue != null)
            {
                oldBarbecue.Date              = newBarbecue.Date;
                oldBarbecue.Venue             = newBarbecue.Venue;
                oldBarbecue.MeatBurgersSold   = newBarbecue.MeatBurgersSold;
                oldBarbecue.VeggieBurgersSold = newBarbecue.VeggieBurgersSold;
                oldBarbecue.HotDogsSold       = newBarbecue.HotDogsSold;
                oldBarbecue.IceCreamsSold     = newBarbecue.IceCreamsSold;

                return(true);
            }
            else
            {
                return(false);
            }
        }
        public bool RemoveBarbecueFromList(string venue)
        {
            Barbecue barbecue = GetBarbecueByVenue(venue);

            if (barbecue == null)
            {
                return(false);
            }

            int initialCount = _listOfBarbecues.Count;

            _listOfBarbecues.Remove(barbecue);

            if (initialCount > _listOfBarbecues.Count)
            {
                return(true);
            }
            else
            {
                return(false);
            }
        }
 //Create new Barbecue
 public void AddBarbecueToList(Barbecue barbecue)
 {
     _listOfBarbecues.Add(barbecue);
 }