private void SelectedQueueUri_KeyUp(object sender, KeyEventArgs e) { e.OnEnterPressed(() => { Uri uri; if (Uri.TryCreate(SelectedQueueUri.Text, UriKind.Absolute, out uri)) { QueueSelected.Invoke(this, new QueueSelectedEventArgs(uri)); } }); e.OnKeyDown(ShowQueueForm); e.OnF4(ToggleQueueForm); }