public void GenerateAcceptablePages(ClientServiceClient client, ListBox allPages) { allPages.Items.Clear(); _acceptablePages.Clear(); foreach (var page in client.GetAcceptablePageFromDB()) { _acceptablePages.Add(page); } foreach (var page in _acceptablePages) { ListBoxItem listitem = new ListBoxItem() { Content = page.Url }; allPages.Items.Add(listitem); } }