如何在Windows Phone 8应用程序中为横向设置滑动控件

Question

我试图为横向设置滑动控制，使用下面的代码我可以帮助以横向方式工作。

TouchPoint _first;

    private List<TList> _pivotList;
    public Pivot()
    {
        InitializeComponent();
        Loaded += pivot_Loaded;
        Touch.FrameReported += Touch_FrameReported;
    }

private void Touch_FrameReported（object sender，TouchFrameEventArgs e）

{     TouchPoint mainTouch = e.GetPrimaryTouchPoint（null）;

if (mainTouch.Action == TouchAction.Down)
    _first = mainTouch;
else if (mainTouch.Action == TouchAction.Up)
{
    var xDelta = mainTouch.Position.X - _first.Position.X;
    var yDelta = Math.Abs(mainTouch.Position.Y - _first.Position.Y);
    if (yDelta > Math.Abs(xDelta))
        return;
    if (Math.Abs(xDelta - 0) > 10)
    {
        var currentIndex = pivotList.SelectedIndex;
        int noOfPivotItems = pivotList.Items.Count;
        currentIndex = (xDelta < 0) ?
            ++currentIndex % noOfPivotItems :
            (--currentIndex + noOfPivotItems) % noOfPivotItems;
        pivotList.SelectedIndex = currentIndex;
    }

}

}