public override void DisposingViewModel(uFrame.MVVM.ViewModels.ViewModel viewModel)
 {
     base.DisposingViewModel(viewModel);
     MainMenuRootViewModelManager.Remove(viewModel);
 }
 public virtual void InitializeMainMenuRoot(MainMenuRootViewModel viewModel)
 {
     // This is called when a MainMenuRootViewModel is created
     MainMenuRootViewModelManager.Add(viewModel);
 }