using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfAppTestComboBox
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            ComboBoxTest.Items.Clear();
            ComboBoxTest.Items.Add("1");
            ComboBoxTest.Items.Add("2");
            ComboBoxTest.Items.Add("3");
        }

        private void ComboBoxTestSelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            txtTest.Text=ComboBoxTest.SelectedItem.ToString();
        }
    }
}