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Train the Barcode Scanner to only scan 1 type of barcode with 2 barcodes in view

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Posted on by MarkHutton

Hello there,

I have a barcode scanner that I want to read a specific barcode on a pallet label. The issue is the pallet label has 2 different barcodes on it.

I would like it to read the top barcode with 47 characters and ignore the bottom barcode. However, when both barcodes are in view, it seems to read the bottom barcode by default as it is shorter. The code below manages to ignore the barcode and post the warning message, but it also kicks the app out of scanner mode.

I would instead like it to stay on the scanner screen and only return a result once the Correct length barcode has been identified. Does anyone have any ideas how to achieve this?

I appreciate the help, Mark

If(Len(Self.Value)<45,Notify("You have Scanned the Wrong Barcode",Warning),Patch('QMS Checks Scanner', {Title: BarcodeScanner2.Value, 'Barcode Type': BarcodeScanner2.Type, 'Scanned Person': User().FullName, 'Scanned Time': Now()});Set(varScan, BarcodeScanner2.Value))

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Building Power Apps

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mhopus 51 on at

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Edit: My apologies for misunderstanding. I was unaware of the whole barcode scanner control and it's nuances. My answer focused on a desktop browser scenario with a barcode reader impersonating a keyboard.

Original post:
There might be something here I'm missing, but wouldn't it work as simply as this? After invalid input the text box resets to empty and focus stays on it so you can try to read the correct barcode:

//text input OnChange // If( Len(Self.Text)<45, //Wrong barcode: Notify("You have Scanned the Wrong Barcode", Warning); Reset(Self), //Correct barcode Notify("Thank you.",Information) )

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MarkHutton 2 on at

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Not to worry.

i believe the easiest way to achieve what I want is to set the barcode scanner to “Select to Scan” rather than Auto. I haven’t quite figured out how to do this yet, any ideas?

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NkaMan 4 on at

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Hi, sorry where do I write this code?

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NkaMan 4 on at

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Hi, sorry where do I write this code?

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mhopus 51 on at

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To the "OnChange" field of the text input.

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