RE: Animation to adjust position of elements. (wpf)

Hi George,

Since you're going to adjust the position of elements at run time, I
suggest that you use a Canvas instead of a Grid in your WPF application. A
Canvas uses absolute positions and it is easier to explicitly position an
element within a canvas.

As for your question, before adding a new rectangle to the group, you need
to calculate the new value of the top property of each existing rectangle
and then play an animation to change the top value of each rectangle to the
new value.

For more information on WPF animations, please refer to the following
articles:
http://www.microsoft.com/emea/msdn/ThePanel/en/articles/animations_wpf.aspx
http://dotnetslackers.com/articles/wpf/IntroductionToWPFAnimations.aspx

Hope this helps.
If you have any question, please feel free to let me know.

Sincerely,
Linda Liu
Microsoft Online Community Support

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