Gallery Template Height

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Posted on by CU08111717-0

In PowerApps, I am creating a nested gallery to display selected filters. I am sharing a screenshot that shows the layout. However, as it show, the nested gallery is overlapping even though it is set on the autoheight. Is there anyway I can set the template height dynamically so it sets differently for each item? I have added vertical container to set gallery to auto height, still not working.

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Sunil Kumar Pashikanti 2,095 Moderator on at

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Hi @CU08111717-0,

This happens because Gallery TemplateHeight is NOT dynamic. Power Apps uses the same height for every row, so a nested gallery with variable content will overlap even if the container is AutoHeight.

To Fix:
Use vertical containers (AutoHeight = true) instead of a nested gallery, or move the variable content into labels/containers that can individually auto‑resize inside a single gallery item.

In short:
Galleries can’t auto-size per item, but containers can. That’s why your layout is overlapping.

Ref:

https://learn.microsoft.com/power-apps/maker/canvas-apps/controls/control-gallery

https://learn.microsoft.com/power-apps/maker/canvas-apps/controls/control-container

https://learn.microsoft.com/power-apps/maker/canvas-apps/layout-templates

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11manish 2,293 on at

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Best workaround is to calculate TemplateSize using CountRows() or avoid nested galleries using flattened data

Set Parent Gallery → TemplateSize like this:

Max(
100,
CountRows(ThisItem.ChildCollection) * 40
)

Explanation:

CountRows() → number of child items

40 → height of each child row

100 → minimum height

or use Vertical Container

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