public Page1() { InitializeComponent(); InspectionService inspectionService = new InspectionService(); List <string> DrainageAreas = new List <string>(); DrainageAreas.Add("Make Selection..."); comboBox1.SelectedIndex = 0; DrainageAreas.AddRange(inspectionService.GetDrainageAreas()); comboBox1.ItemsSource = DrainageAreas; }