private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            CigUrunler cigürün = new CigUrunler();

            this.Close();
            cigürün.Show();
        }
 private void Filtrelemeler_SelectionChanged(object sender, SelectionChangedEventArgs e)
 {
     if (filtrelemeler.SelectedItem == artan)
     {
         CigUrunler filtre = new CigUrunler();
         this.Close();
         filtre.Show();
     }
 }