private void CommandBinding_Executed_2(object sender, ExecutedRoutedEventArgs e)
{
OknoKalkulatora Okno = new OknoKalkulatora();
Okno.Show();
}
private void CommandBinding_Executed_1(object sender, ExecutedRoutedEventArgs e) //4. Pokazuje kalkulator
{
OknoKalkulatora Okno = new OknoKalkulatora();
Okno.Show();
}