GuidesPower Apps gallery shows no data — how to fix it
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Power Apps gallery shows no data — how to fix it
A gallery that stays empty is almost always a data, filter or refresh problem. Work through these checks in order.
Check the Items property first
Select the gallery and read its Items property. If it points to a collection, confirm the collection was actually filled (ClearCollect in OnVisible/OnStart ran).
If Items is a Filter() returning nothing, temporarily set Items to the raw data source to confirm data exists.
Common causes
- 1The OnVisible/OnStart that builds the collection never ran — navigate away and back, or check App.OnStart.
- 2A filter condition is too strict or compares mismatched types (text vs number, or a blank variable).
- 3A delegation limit silently dropped the rows you expected (see the delegation guide).
- 4The data source needs a Refresh() after a Patch or external change.
Quick diagnosis
Add a temporary label with Text = CountRows(YourGalleryItems) to see how many rows the gallery is really getting. Zero means the query, not the template, is the problem.