private void Toggle(Uri uri, Button button)
{
PreviousUri = CurrentUri;
PreviousButton = CurrentButton;
CurrentButton = button;
CurrentUri = uri;
PreviousButton.IsEnabled = true;
CurrentButton.IsEnabled = false;
TheFrame.Navigate(CurrentUri);
}
public void OnCategorySelected(string categoryName)
{
TheFrame.Navigate(new Uri("MenuPage.xaml", UriKind.Relative));
}