Microsoft.Phone.Controls.TransitionFrame.FlipPresenters C# (CSharp) Method

        private void FlipPresenters()
        {
            _newContentPresenter = _useFirstAsNew ? _firstContentPresenter : _secondContentPresenter;
            _oldContentPresenter = _useFirstAsNew ? _secondContentPresenter : _firstContentPresenter;
            _useFirstAsNew = !_useFirstAsNew;
        }