Hello,
You can use the filter function over your collection. Let's say you have a textbox called txtInput and based on what you type their you want to filter your gallery.
So the items property of your gallery can look like :
Filter(your_database, txtInput.Text = some_column_of_your_database)
But if you want to link your gallery to your scanned items you would need to change your onscan function to:
OnScan = Collect(
_scannedValues, BarcodeScanner1.Value);Navigate(Screen3)
And your items property of the gallery on screen3 to
Filter(_scannedValues, txtInput.Text in Value )
Best regards,
Alaa