private void button1_Click_1(object sender, EventArgs e)
{
var selectedPodcast = listPodcast.SelectedItems[0].Text;
if (selectedPodcast.Length >= 1)
{
var podcast = service.Get(int.Parse(selectedPodcast));
podcast.Category = txtChooseCategory.Text;
podcast.RefreshInterval = int.Parse(cbxFrekvens.Text);
podcast.Name = txtTitel.Text;
service.Save(podcast);
service.Serialize();
}
}