private void OnFileSystemLocked(object sender, LockedEventArgs e)
{
if (!this.Dispatcher.CheckAccess()) {
this.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Normal, new LockedChangedHandler((s, e2) => {
OnFileSystemLocked(sender, e2);
}), sender, e);
return;
}
if (e.IsLocked) {
NavControl.SelectedIndex = 0;
}
}