Windows 8 如何在window8 slate中进行收缩缩放

如何在windows8 slate中放大或缩小多次

你能用C#提供答案吗

谢谢

那加诸那

<SemanticZoom.ZoomedOutView>
    <!-- Put the GridView for the zoomed out view here. -->   
</SemanticZoom.ZoomedOutView>

<SemanticZoom.ZoomedInView>
    <!-- Put the GridView for the zoomed in view here. -->       
</SemanticZoom.ZoomedInView>