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Article #12096

Re: JProgressBar???

#12096
From: Martin Schmitz
Date: Tue, 23 Feb 1999 00:00
50 lines
2209 bytes
hi,

you should read the swing documentation carefully!!!!!!!!!

the progressbar can't be updated, because you're doing all the work
inside the event-dispatching thread. that means the messages for
repaint,validate a.s.o. don't get processed until your method finishes!
the only save and clean solution is to use a thread to do all your
processing (try the worker class available at java.sun.com) and call the
progressbar.setValue method from this thread!
martin

Dieter Mach wrote:
> 
> Hi,
> 
> we also had serious problems with updat๏ฟฝng a progress bar. We found this
> working:
> 
>   progressBar.paintImmediately(progressBar.getBounds());
> 
> I don't know wether this will work in your app also, because from the code
> snipplet I can't see how you add the progress bar to your dialog or panel. I
> think it woud be a good idea not to create a new JProgressBar every time
> before passing the setValue() method. Also, don't forget to call something
> like
> 
>   progressBar.setMinimum(0);
>   progressBar.setMaximum(100);
> 
> before using the progress bar.
> 
> Dieter
> 
> Marcel Hell schrieb in Nachricht <7asbfp$s6c8@forums.borland.com>...
> >
> >Vasudevan Srinivasan schrieb in Nachricht
> <36D1B06A.32258010@netrisk.com>...
> >>Hi,
> >>Just a guess, try calling the jProgressBar1.repaint() or validate() or
> >>similar-functioning methods immediately after jProgressBar1.setValue()
> >>
> >>Vasu
> >>
> >>
> >
> >I've also tried that, but nothing happens!
> >I can't get it to be updated!!!!
> >
> >
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From: Martin Schmitz <mschmitz@teamworks.de>
Subject: Re: JProgressBar???
Date: 1999/02/23
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