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Helper I
Helper I

Auto Height of canvas changed behaviour

I have a scrollable window on a canvas app.

I`ve created a set of cards that expands or collapses like a tree control.

Old Behaviour: I could set a card height small enough just to view those objects with visible=true at the top of the card.  Other objects with visible=false were not considered into container's height validation.

New Behaviour: every object on the container, visible or not, is accountable for container height validation. To collapse the container card I must:

  • Set every invisible object height to 0
  • Set every invisible object y to 0

... and remember their original locations


Is this going to be the new standard behaviour? or it depends on any new configuration?

Thanks in advance

Community Support
Community Support

Hi @Bubbler ,

Could you please share a bit more about your scenario?

Do you mean that these invisible objects within the Container would be considered container's height validation?


Based on the issue that you mentioned, I have made a test on my side, and don't have the issue that you mentioned. These invisible objects within the Canvas Container would not be considered into Container's height.



Please consider take a try to re-create a new canvas app, then add a Scollable screen within it ("Insert" -> "New Screen"-> "Scrollable screen"), then check if the issue is solved.


If I do not understand your issue correctly, please share a screenshot about your issue, then we could reproduce it on my side, and provide a proper workaround for you.


Best regards,

Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi @v-xida-msft 


You got it perfectly.

I've rebuilt it from scratch as you suggested and.... It worked!!


So I compared each implementation to try to understand the differences.

Finally I discovered the issue/bug.  It only happens when the invisible objects are grouped together.


Try to group a pair of objects that change their visibility dinamically, It happens even if all the grouped objects are invisible at the same time.


Could you reproduce it?

It is a new behaviour

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