protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
LeftFrame.Navigate(typeof(TaskList));
await CurrentApp.WaitForInitializingAsync();
// navigate right frame to about page by default
// this might be override by input actions
NavigateRightFrame(typeof(AboutPage), null);
// run start up actions
CurrentApp.StupActionManager.Do();
// release loading view
LoadingView.Visibility = Visibility.Collapsed;
// handle startup dialog
// await TryShowStartUpDialogAsync();
}