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Article View: borland.public.jbuilder.java.swing
Article #8763

Re: Flashing

#8763
From: Paul Furbacher [TeamB]
Date: Wed, 19 Jul 2000 00:00
32 lines
1502 bytes
Velu Erwan wrote:
> 
> yeah, now it's working like this !
> how can i fix it ?
> The combo works as i want but it's flashing !

That indeed means, as was pointed out several times
in a separate thread, that you are mixing light- and
heavyweight components.  

Try the simplest case:

1. Create a new Frame, not a JFrame.
2. Place your JComboBox onto that Frame.  Make sure it
   has a lot of room between the bottom edge of the 
   combobox and the bottom of the frame.  To do the 
   test properly, you don't want to have the list 
   exceed the bottom of the window.
3. Programmatically set three items in that combobox.
4. Run.

Do you now see the drop-down list?  (You shouldn't.
You should only see a bit of flicker.)

Now, do the same 4 steps, but use a JFrame.

For more background on the light- / heavyweight issue, 
please read the "Hints and Tips.txt" file in the JBuilder
folder.


Paul Furbacher (TeamB)
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From: "Paul Furbacher [TeamB]" <pnf@home.com>
Subject: Re: Flashing
Date: 2000/07/19
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