c# - How to do rotation around control's center in XAML

Question

I want do rotate button to 90 degrees but it gets clipped because it rotates arount (0,0). How to make it rotate around center if I don't know it't width in pixels (it's a template for many buttons)

Answer 1

You have to set the control's RenderTransformOrigin to 0.5, 0.5.

ex.:

<Button RenderTransformOrigin="0.5, 0.5">
    <RepeatButton.RenderTransform>
        <RotateTransform Angle="90"/>
    </RepeatButton.RenderTransform>
</RepeatButton>