Power Apps examples

Power Apps Collections examples for galleries and staged edits

Examples for ClearCollect, AddColumns, staged edits, review queues, and collection-backed galleries.

Power Apps collections examplesClearCollect examplesPower Apps collection gallery

When to use this

Collections are best when you need a local working set, a staging area, or a transformed table for a user experience.

Implementation steps

Load only the rows and columns needed for the task.
Add display-friendly calculated columns once.
Track changed rows explicitly.
Patch only the rows that changed.

Starter example

Formula / code

ClearCollect(
    colReviewQueue,
    AddColumns(
        ShowColumns(Filter(Requests, RequestStatus.Value = "Ready for Review"), "ID", "Title", "Priority", "Modified"),
        "AgeInDays",
        DateDiff(Modified, Now(), TimeUnit.Days),
        "IsChanged",
        false
    )
);

FAQ

Can I copy this example directly?

Use it as a starting point, then adjust data source names, column names, permissions, and validation for your tenant.

Should this be tested before production?

Yes. Test with realistic records, non-admin users, edge cases, and expected data volume before release.

Common mistakes

Loading an entire large list into a collection.
Treating collection data as always current.
Losing the original record ID.
Repeating the same display formulas in every gallery control.