private async void btnChangeURL_Click(object sender, EventArgs e) { string VURL = txtBoxNewURL.Text; try { if (Validator.ValidateUrl(VURL)) { var oldPod = cmBoxPods.SelectedItem as Logic.Podcast; string newURL = txtBoxNewURL.Text; oldPod.URL = newURL; MessageBox.Show("URL för Podcast " + oldPod.Titel + " har ändrats"); Logic.RSSReader reader = new Logic.RSSReader(); var newEpisodeList = await reader.getFeed(newURL); oldPod.Episodes = newEpisodeList; cmBoxPods.DataSource = null; cmBoxPods.DataSource = PodList; cmBoxPods.DisplayMember = "Titel"; } } catch (Exception ex) { MessageBox.Show(ex.Message); } }