private void openContactURLMenu_Click(object sender, EventArgs e)
{
var item = channelList.SelectedItem as ChannelListItem;
if (item!=null) {
var url = item.Channel.ChannelInfo.URL;
Uri uri;
if (!String.IsNullOrEmpty(url) && Uri.TryCreate(url, UriKind.Absolute, out uri)) {
System.Diagnostics.Process.Start(uri.ToString());
}
}
}