async void ResetBoard()

in Games/Memory/GamePage.xaml.cs [415:469]
48 lines of code
6 McCabe index (conditional complexity)

        async void ResetBoard()
        {
            PlayAgainText.Visibility = Visibility.Collapsed;
            _gameOver = false;
            _firstButton = null;
            _secondButton = null;
            _numMoves = 0;
            MoveCountTextBlock.Text = _numMoves.ToString();            
            _remaining = _boardRows * _boardColumns;
            var pairs = (_boardRows * _boardColumns) / 2;

            List<string> listContent;
            if (_usePictures)
            {
                try
                {                
                    listContent = await GetPicturesContent(pairs);
                }
                catch
                {
                    listContent = GetSymbolContent(pairs);
                    _usePictures = false;
                }
            }
            else
            {
                listContent = GetSymbolContent(pairs);
            }

            List<Button> listButtons = ShuffleList(GetButtonList());

            var compositor = ElementCompositionPreview.GetElementVisual(this).Compositor;
            if (_resetBatchAnimation != null)
            {
                _resetBatchAnimation.Completed -= ResetBatchAnimation_Completed;
                _resetBatchAnimation.Dispose();
            }

            _resetBatchAnimation = compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
            _resetBatchAnimation.Completed += ResetBatchAnimation_Completed; ;

            foreach (Button button in listButtons)
            {
                FlipCardFaceDown(button);
                GazeInput.SetInteraction(button, Interaction.Inherited);                
            }
            _resetBatchAnimation.End();

            for (int i = 0; i < _boardRows * _boardColumns; i += 2)
            {
              
                listButtons[i].Tag = listContent[i / 2];
                listButtons[i + 1].Tag = listContent[i / 2];
            }
        }