How to dynamically set the templatesize property of the gallery on power APP

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Posted on by CU28080922-0

Hi Team,

I want to know how to dynamically set the value of attribute Gallery'templatesize because I am facing the following requirement: I need to embed a reply box in the sub gallery and change the size of the selected item's templatesize. I need to use a button to make it work,. However, the current effect is that my changes will affect every item in the gallery. Is there a way to make it only work on the row I am currently selecting.The size of each item will increase, can't we control the selected item separately？

The effect I need is that when I click on an item, it only opens a reply box and adds a templatesize to the item I have selected, and the remaining unselected items are not affected.

Can we achieve such control? Or are there any alternative solutions? Thank you very much for your help

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Power Apps Pro Dev & ISV

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MichaelFP 1,847 Super User 2025 Season 2 on at

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for that scenario I recommend to you to use the container, so you will be able to set the size based on the parent.

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CamiloLuque 157 on at

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Hi, you can use the flexible height gallery and just need to set the object Visible property to true or false.

In the button Reply I Update the Reply column to false for the other records and Patch Reply column of the selected record to true or false:

The Reply column set the Visible property for text box and submit button:

Look how to work:

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