private void btn_add_feed_Click(object sender, EventArgs e) { if (!string.IsNullOrWhiteSpace(tb_easy_name.Text) && !string.IsNullOrWhiteSpace(tb_feed_url.Text)) { try { Feed feed = new Feed(tb_easy_name.Text, tb_feed_url.Text); feedsManager.AddFeedToConfig(feed); AddItemToListBox(ltb_feeds, feed); displayManager.UpdateTiles(pn_tiles); } catch (ConfigurationErrorsException ex) { Alert(ex.Message); } } else { string prompt = "Please enter a name and URL for the new feed"; MetroMessageBox.Show(this, prompt, "Add New Feed", MessageBoxButtons.OKCancel, MessageBoxIcon.Information); } }