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); }