Hi Hendre
You are probably doing the import work from the main thread. Thus your
progress bar can't actually be repainted, as the main application thread
is kept busy with all the importing work.
You must always do the data processing work in a background thread, or
better still, make use of a thread pool. Have a look at the
java.util.concurrency package.
Then you do a call-back from the background thread to the main UI thread
for repainting using something like:
SwingUtilities.invokelater(new Runnable(){
public void run(){
progressbar.update(...)
...
}
});
I would recommend that you have a look at java.sun.com for their
tutorials. There is a lot of info on how to use multi-threaded
applications with Swing.
Cheers,
Herman
Hendre Louw wrote:
>
> Hi All
>
>
>
> Another question! I am importing 100 000 records and have a progress
> bar to indicate progress. After every 100 records I update the
> progress bar, but nothing happens. The progress bar does not update.
> It seems that messages to the UI are blocked while I am importing. How
> do I get the GU to refresh?
>
>
>
> Hendre Louw
>
> Skype: hendrel
>
>
> >
>
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Mobile: +27-82-339-6932
Web: http://www.polymorph.co.za
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