Tekst z pozycji w listbox'ie

            for (int i = 0; i < listBox1.Items.Count; i++)
            {
                if (listBox1.GetSelected(i) == true)
                {
                        x=x+1;
                        //foldery_wybrane[x] = listBox1.SelectedItem.ToString();
                        //foldery_wybrane[x] = listBox1.GetItemText(i);
                }
            }

List<string> foldery_wybrane = new List<string>();

foreach (int i in listBox1.SelectedIndices)
{
    foldery_wybrane.Add(listBox1.Items[i].ToString());
}