private void button2_Click(object sender, RoutedEventArgs e)
{
if (listBox1.SelectedItem != null)
{
XMLUebersicht new_window = new XMLUebersicht(listBox1.SelectedItem.ToString(), true);
new_window.Owner = this;
new_window.Show();
}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
XMLUebersicht new_window = new XMLUebersicht();
new_window.Owner = this;
new_window.Show();
}