source: 2015/koodauskerho/otjojunt/WpfHarjoitus1/WpfHarjoitus1/MainWindow.xaml.cs @ 7060

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfHarjoitus1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public ObservableCollection<string> listBoxItems { get; private set; }

        public MainWindow()
        {
            InitializeComponent();
            listBoxItems = new ObservableCollection<string>();
            DataContext = this;
            ClipboardListener.ClipboardUpdate += LisaaListaan;
        }

        private void LisaaListaan(string contents)
        {
            listBoxItems.Add(contents);
        }

        private async void listBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            ClipboardListener.ClipboardUpdate -= LisaaListaan;
            //Clipboard.SetText(listBox.SelectedItem.ToString());
            Clipboard.SetText(listBoxItems.ElementAt(listBox.SelectedIndex));
            await Task.Delay(10);
            ClipboardListener.ClipboardUpdate += LisaaListaan;
        }
    }
}