private void DefaultBtn_Click(object sender, EventArgs e) { if (ChannelList.SelectedIndex == -1) { return; } ChannelData channel = (ChannelData)ChannelList.SelectedItem; if (Program.Config.DefaultChannel == channel.name) { Program.Config.DefaultChannel = string.Empty; } else { Program.Config.DefaultChannel = channel.name; } ChannelList.Refresh(); Program.SaveConfig(Program.ConfigurationFilename, Program.Config); }