public MainPageViewModel(INavigationService navigationService, UserLibraryViewModel userLibaryViewModel, CatalogsViewModel catalogsViewModel, DataBaseInitializer dbInitialzier, CopsPageViewModel copsPageViewModel) { _navigationService = navigationService; _dbInitialzier = dbInitialzier; UserLibraryViewModel = userLibaryViewModel; CatalogsViewModel = catalogsViewModel; CopsPageViewModel = copsPageViewModel; }
public void OnBackPressed(CancelEventArgs cancelEventArgs) { if (CopsPageViewModel == null) { return; } if (!CopsPageViewModel.CanGoToPreviousLevel) { return; } cancelEventArgs.Cancel = true; CopsPageViewModel.GoBack(); }