public pocetniEtiketa()
 {
     baza = new Baza();
     baza.ucitajEtikete();
     Etikete          = baza.Etikete;
     this.DataContext = this;
     instanca         = this;
     InitializeComponent();
     WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen;
 }
        private void Etiketa(object sender, RoutedEventArgs e)
        {
            var s = new Projekat.Etiketa.pocetniEtiketa();

            s.Show();
        }