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Gallery Filter With Search Bar or Barcode

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Posted on by ajblodgett

I am using the Sharepoint list app template (with a few minor modifications) and want to allow users to either search by typing or search by using a barcode. However, I haven't quite figured out how to get the gallery to allow filtering by both, just one or the other.

This is the default code that works which works perfectly for searching my gallery from the search bar, but any injection I've added doesn't allow me to get results from the scanner.

SortByColumns(Filter([@'TBC Staging Inventory'], StartsWith(Title, TextSearchBox1.Text)), "Title", If(SortDescending1, SortOrder.Descending, SortOrder.Ascending))

I've also tried to get the scanner to output the results to the search bar, but after scan it doesn't do anything.

OnVisibile (Screen)

UpdateContext({scannedValue: Blank()})

OnScan (Barcode Scanner)

UpdateContext({scannedValue: First(BarcodeReader.Barcodes).Value})

Default (Search box)

If(IsBlank(ScannedValue), YourListName, Filter(YourListName, Barcode = scannedValue))

Any input would be greatly appreciated!

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Building Power Apps

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BCBuizer 22,899 Super User 2026 Season 2 on at

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Hi @ajblodgett ,

Assuming the Search box is a Text Input control, try setting it to:

scannedValue

Also, you may want to change your BarCodeScanner.OnScan property to:

UpdateContext({scannedValue: Last(BarcodeReader.Barcodes).Value})

Like that you set the variable with the value of the last barcode you scanned instead of the first one which doesn't change if you scan multiple unless you reset the scanner in between scans.
ajblodgett 6 on at

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@BCBuizer

That still didn't populate the search box.
BCBuizer 22,899 Super User 2026 Season 2 on at

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Hi @ajblodgett,

Can you please share how you tested the functionality?
ajblodgett 6 on at

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@BCBuizer

T tested using the barcode scanner on my phone with a barcode that contains something that one of the data cards.
BCBuizer 22,899 Super User 2026 Season 2 on at

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Hi @ajblodgett ,

Did you make sure that the version of the app you tested on your phone was the one that had these new updates in it?

It can help to add a hard-coded version number in your app to be sure about the above. Also, for testing, you can add a label to the app in the screen with the scanner that displays the value of the variable so you can verify if that's being populated correctly.