Rotating a control in metro style apps

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Windows

Win8

Hi,

<grid canvas.left="569" canvas.top="480" width="409" rendertransformorigin="0.5,0.5">
<grid.rendertransform>
<compositetransform>



<ellipse verticalalignment="Top" horizontalalignment="Center" width="20" fill="Blue" height="20">
ManipulationMode="Rotate" ManipulationDelta="Ellipse_ManipulationDelta" ManipulationStarting="Ellipse_ManipulationStarting" ManipulationCompleted="Ellipse_ManipulationCompleted">
<local:myusercontrol1 x:name="testControl" margin="0,20" xmlns:x="#unknown" xmlns:local="#unknown">
ManipulationMode="All" RenderTransformOrigin="0.5,0.5">
<local:myusercontrol1.rendertransform>
<compositetransform>





I need to rotate the grid control based on the ellipse in windows store apps

Can anybody please help?

Thanks in advance.

Vinay