Hi Viswa, Why do you need to use a StackPanel? Generally if you have a fixed layout panel, go with Grid. But anyways, I dont know exactly how KinectTileButton works, but if you specify same size for MaxWidth and MinWidth, or MaxHeight and MinHeight, everything will remain same irrespective of the container. Do let me know if you are looking for something else.
Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.
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