public BindingList <ItemMasterListboxMainPOS> RetrievePark(int id)
        {
            var data  = _parkRepository.GetById(id);
            var items = new BindingList <ItemMasterListboxMainPOS>();

            foreach (var item in data.ParkItems)
            {
                items.Add(new ItemMasterListboxMainPOS
                {
                    Id = item.ItemMasterId,
                    LongDescription = item.ItemMaster.LongDescription,
                    Index           = item.Index,
                    Quantity        = item.Quantity
                });
            }
            return(items);
        }