//Opgave 6
private void Opgave6_Click(object sender, RoutedEventArgs e)
{
textBoxRight.Clear();
textBoxRight.Text = classBIZ.CountNumberOfWordLength(textBoxLeft);
}
private void opg6Button_Click(object sender, RoutedEventArgs e)
{
textBoxRight.Text = cb.CountNumberOfWordLength(textBoxLeft);
}