ArcGISWindowsPhoneSDK.ClosestFacility.ChoicesButton_Click C# (CSharp) Метод

        private void ChoicesButton_Click(object sender, RoutedEventArgs e)
        {
            ChoicesListBox.Tag = (sender as Button).Name;
            List<string> choices;

            switch ((sender as Button).Name)
            {
                case "TravelDirection2":
                    choices = travelDirectionChoices;
                    break;
                case "AttributeParameter2":
                    choices = attributeParameterChoices;
                    break;
                case "RestrictUTurns2":
                    choices = restrictUTurnChoices;
                    break;
                case "OutputLines2":
                    choices = outputLineChoices;
                    break;
                case "OutputGeometryPrecisionUnits2":
                    choices = outputGeomPrecisionChoices;
                    break;
                case "DirectionsLengthUnits2":
                    choices = directionsLengthUnitChoices;
                    break;
                default:
                    return;
            }

            ChoicesListBox.SelectionChanged -= ChoicesListBox_SelectionChanged;
            ChoicesListBox.ItemsSource = choices;
            int selectedIndex = choices.IndexOf((sender as Button).Content.ToString());
            ChoicesListBox.SelectedIndex = selectedIndex;
            ChoicesListBox.SelectionChanged += ChoicesListBox_SelectionChanged;
            ChoicesPage.IsOpen = true;
        }