# Opacity animation doesn't show

**URL:** <https://forum.kirupa.com/t/opacity-animation-doesnt-show/279597>\
**Category:** Uncategorized\
**Created:** [January 16, 2009, 12:42pm UTC](https://forum.kirupa.com/t/opacity-animation-doesnt-show/279597 "2009-01-16T12:42:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Charleh](https://avatars.discourse-cdn.com/v4/letter/c/a9a28c/32.png) [@Charleh](https://forum.kirupa.com/u/Charleh)\
**Post date:** [January 16, 2009, 12:42pm UTC](https://forum.kirupa.com/t/opacity-animation-doesnt-show/279597/1 "2009-01-16T12:42:17Z")

</div>

When I try and animate an objects opacity using a storyboard/doubleanimation the interpolated frames don’t show - the animation runs OK and I can fire the Completed event and catch the output

On screen the control doesn’t fade - it stays at 100% opacity then flicks to 0% opacity when it hits the end of the animation

I’ve actually had this working, but when it was working the control was actually scaling up in size also -

Anyone got any ideas? Kirupa, you use this stuff don’t you?

Can I not see the animation because the client draw area is not being invalidated correctly when there is a change in opacity?

Cheers!