private void btnDelete_Click(object sender, EventArgs e)
{
var selectedPodcast = listPodcast.SelectedItems[0].Text;
var podcast = service.Get(int.Parse(selectedPodcast));
service.Delete(podcast);
foreach (ListViewItem eachItem in listPodcast.SelectedItems)
{
listPodcast.Items.Remove(eachItem);
}
}