private void Button_Click(object sender, RoutedEventArgs e) { IList <AirlineCompany> ALC = anonymousUserFacade.GetAllAirLineCompanies();//flightNametxtBx.Text foreach (AirlineCompany a in ALC) { if (a.AirLineName == airLineNametxtBx.Text) { airLineCis.Add(a); } } }