protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
var loadData = e.NavigationMode != NavigationMode.Back;
_viewModel = ServiceLocator.Current.GetInstance <CategoriesViewModel>(loadData);
DataContext = _viewModel;
if (loadData)
{
await _viewModel.LoadState();
}
_viewModel.InstantiateHeroImageSlideShowTimer();
UpdateSlideShowTimer();
}