private void btnIzmena_Click(object sender, RoutedEventArgs e)
{
Kurs k = dgKursevi.SelectedItem as Kurs;
KursIzmena ki = new KursIzmena(k, MOD.IZMENA);
ki.ShowDialog();
}
private void btnDodavanje_Click(object sender, RoutedEventArgs e)
{
Kurs k = new Kurs();
KursIzmena ki = new KursIzmena(k, MOD.DODAVANJE);
ki.ShowDialog();
}