How to auto adjust container dimensions

Is there a property I can set on Canvases, Panels, or other containers that would make them auto-adjust their height/width dimensions based on the child components.  Basically, I would like for this to happen at load AND during run time.  So if you update a Text control in a Canvas container it will resize itself so you can see everything.
Or do I have to write some complicated function to do this?

Sorry, I answered my own question about 2 minutes after asking it.  When I got rid of the "width = 100%" attributes from the Text controls it worked.  You also have to make sure you dont initially set the width and height values for the container.

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