private void OnChangeStatView(object sender, RoutedEventArgs e)
        {
            RadioButton radio = sender as RadioButton;

            if (radio.Tag != null)
            {
                string       tag  = radio.Tag as String;
                StatViewType type = (StatViewType)Enum.Parse(typeof(StatViewType), tag);
                _listView.ItemsSource   = _stats.StatsList(type);
                _listView.SelectedIndex = 0;
                _listView.Focus(Windows.UI.Xaml.FocusState.Programmatic);
            }
        }
        public ObservableCollection <Stat> StatsList(StatViewType type)
        {
            switch (type)
            {
            case StatViewType.Counting:
                return(_statsAboutCounting);

            case StatViewType.Crib:
                return(_statsAboutCrib);

            case StatViewType.Game:
                return(_statsAboutGames);

            case StatViewType.Hand:
                return(_statsAboutHands);
            }

            return(_statsAboutGames);
        }