private void buttonPrebaciLek_Click(object sender, RoutedEventArgs e)
        {
            List <Drug> unconfirmedDrugs = dc.ViewUnconfirmedDrugs();

            if (unconfirmedDrugs != null)
            {
                foreach (Drug d in unconfirmedDrugs)
                {
                    if (SelektovaniLek != null)
                    {
                        if (SelektovaniLek.Sifra.Equals(d.Id))
                        {
                            dc.ConfirmDrug(d);
                            dc.DeleteUnconfirmedDrug(d.Id);
                        }
                    }
                }
            }
        }
 private void Button_Click(object sender, RoutedEventArgs e)
 {
     dc.ConfirmDrug(d);
     this.Close();
 }