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Force users to use Barcode Scanner
Message
 
À
24/06/2010 13:38:37
Timothy Bryan
Sharpline Consultants
Conroe, Texas, États-Unis
Information générale
Forum:
ASP.NET
Catégorie:
Autre
Divers
Thread ID:
01470416
Message ID:
01470438
Vues:
45
>>I'm writing a WPF application using VS 2008 for a client that wants to force the users to scan a barcode for data entry into MOST textboxes. But they want a password protected override button on the form that will allow a person to manually enter the text if, for some reason, the barcode is unreadable or the reader is not working.
>>
>>Does anybody know of a way to ignore data entry into textboxes using the keyboard, but allow barcode scanned text?
>
>I don't know about scanners but I am curious why the textboxes can't be set to readonly. Doesn't the scanner stream come in on some event being raised like scanner_InputReceived? I did do lots with RFID and that was how it worked. I just set the textboxes to readonly to preven the user from messing with the RFID data (or GPS) fields.

Most barcode scanners send data via the keyboard interface. Many plug in to the keyboard port. The Computer doesn't know the difference.

>Tim
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