Barcode reader input and JTextField

Hi Everybody,
here is my problem: I have to read the input from a Barcode reader into a JTextField;
I have a Listener attached to the JTextField Document which works fine. The problem is that the listener is invoked as many time as the characters input (e.g 12 times, if the scanned barcode has 12 digits)
How do I know the input is complete if I don't know the length of the expected input?
Thanks in advance fon any help or ideas

What kind of Listener have you attached to the TextField?
Most bar code readers can be configured to finish the scan with a carriage return in which case if you use an ActionListener then it would solve your problem

Similar Messages

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    Hi, 
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    Thanks
    Attachments:
    barcodereader.vi ‏16 KB

    Is there a reason you have a timeout event?  You are not doing anything in there.  So I would remove the timeout (you can just remove the timeout input or set it to -1).
    I'm just thinking that if you set the focus while the scanner is doing its thing is causing the issue you are seeing.
    There are only two ways to tell somebody thanks: Kudos and Marked Solutions
    Unofficial Forum Rules and Guidelines

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  • I am unable to download Mavericks from the app store and seem to meet the requirements on my 10,6,8 imac 2010 with 12gb ram

    I attempted to download mavericks yesterday in the hopes of using the new lightroom 5 cc. The download stalled and after an attempt to try anew, I click the download button and nothing happens. What can I do?

  • Sizing hardware for 11i on linux

    Does anybody have any experience/insight sizing hardware for a new 11i install on linux? We've estimated that we'll have about 300 named users, using finance, manufacturing and hr modules. How big/many servers do we start with?

  • Menu fonts are missing

    When opening FF no fonts appears, neither the menus nor in the address bar, or anywhere else! It happened suddenly. I tried uninstalling and reinstalling but the problem continued.