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Reset or Empty New BarcodeReader?

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Posted on by wsalling

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I am trying to find a way to reset or empty or clear the new BarcodeReader data. (BarcodeReader1.Barcodes,Values). Sometimes we don't need to scan a barcode for an item. On these occasions we notice that it is reading the values from the last scans. I don't see a reset or clear function to erase memory. Below are the 2 functions we currently use to get barcodes scanned for an item.

ClearCollect(colDistinct,Distinct(BarcodeReader1.Barcodes,Value));
Set(TallyAsset,Concat(colDistinct,Value,"|"));

when we leave the screen and come back into it i need to be able to remove the lasted used scans. Ideas?

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Building Power Apps

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Shaheer Ahmad 2,194 Moderator on at

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To clear the data stored in the BarcodeReader control in Power Apps, you can use the ClearCollect function with an empty collection to reset the stored values. Here's an example of how you can clear the scanned barcodes:

ClearCollect(BarcodeReader1.Barcodes, {}); // Replace BarcodeReader1 with the name of your BarcodeReader control

By passing an empty collection ({}) as the second argument to ClearCollect, you essentially overwrite the existing Barcodes collection with an empty collection, effectively clearing the stored barcode values.
You can place this code in an appropriate event or action, such as when leaving the screen or when a button is clicked, to clear the barcode values before returning to the screen or performing another action.
After executing the ClearCollect function, the BarcodeReader control will be empty, and any subsequent scans will populate the Barcodes collection with new values.
Make sure to replace BarcodeReader1 with the actual name of your BarcodeReader control in your app.
I hope this helps! Let me know if you have any further questions.

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Jakub1987 19 on at

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Hi Shaheer,
Where exactly this formula must be placed?
ClearCollect(BarcodeReader1.Barcodes, {}); // Replace BarcodeReader1 with the name of your BarcodeReader control

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Thor_PPC 365 on at

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This isn't working for me. I get the error "The first arguement of 'ClearCollect' should be a collection"

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