private void Marketplace_View_Load(object sender, RoutedEventArgs e) //are these parameters necessary? { Marketplace marketView = new Marketplace(); //List<Listing> listings = new List<Listing>(); marketView.SearchAll(); //Seth's code to display listings, havent tested for (int i = 0; i < marketView.listings.Count; i++) { resultsListBox.Items.Add(marketView.listings.ElementAt(i)); } }