[WinRT] How to change NavigationService base frame?

I have a view BasePage, which is opened on start, and it contains Frame. I want to register NavigationService using not rootFrame, but my Frame from BasePage.

In WP it was possible to get container from code-behind:

Bootstrapper bootstrapper = Application.Current.Resources["bootstrapper"] as Bootstrapper;

and after that call RegisterNavigationService(CustomFrame);

But I didn’t found a way to do it in Win8 app. Any ideas?

[nigel-sampson]

On the Frame control in your BasePage.xaml is the Frame’s DataContext set to null?

<Frame DataContext="{x:Null}" />

If not, the behaviour you’re seeing will happen. The reason is that the Frame’s DataContext is BasePageViewModel, which means any Page you navigate to inside that Frame will inherit the DataContext, therefore the Navigation Service won’t create IndexPageViewModel as it believes the Page already has a ViewModel.

[Ponf]

@nigel-sampson thanks!