Re: JComboBox drop-down arrow disappears

From	Nigel Wade <nmw-news@ion.le.ac.uk>
Newsgroups	comp.lang.java.gui
Subject	Re: JComboBox drop-down arrow disappears
Date	2011-11-01 17:31 +0000
Message-ID	<9haonuFbrhU1@mid.individual.net> (permalink)
References	<d05844e4-ec76-45ca-bcf3-f3fdabfb3356@v33g2000prm.googlegroups.com>

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On 01/11/11 15:40, Amandil wrote:
> Does anyone else have this problem? Is it documented anywhere? Calling
> removeAllItems() on a JComboBox caused the drop-down arrow to
> disappear. It did not reappear even after the JComboBox was
> repopulated.
> (The code is rather long, though I can attach it if someone would need
> it to help with this issue).
>
> I'd appreciate anyone's help with this issue. (That would help me
> learn more about this group as well - useful after seeing people
> getting burned elsewhere...)
>

I have never seen this problem, and I have applications which regularly 
populate/de-populate JComboBox items.

Follow Daniel's advice. Ensure all your manipulation of the JComboBox is 
done on the EDT. Strip your code down to the smallest possible example 
which demonstrates the problem, if you intend to post. This action in 
itself very often identifies what's wrong.

-- 
Nigel Wade

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Thread

JComboBox drop-down arrow disappears Amandil <mazwolfe@gmail.com> - 2011-11-01 08:40 -0700
  Re: JComboBox drop-down arrow disappears Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-11-01 09:29 -0700
  Re: JComboBox drop-down arrow disappears "John B. Matthews" <nospam@nospam.invalid> - 2011-11-01 13:06 -0400
    Re: JComboBox drop-down arrow disappears Roedy Green <see_website@mindprod.com.invalid> - 2011-11-01 23:20 -0700
  Re: JComboBox drop-down arrow disappears Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-11-01 17:31 +0000
    Re: JComboBox drop-down arrow disappears Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-11-01 10:48 -0700
    Re: JComboBox drop-down arrow disappears Roedy Green <see_website@mindprod.com.invalid> - 2011-11-01 23:22 -0700
  Re: JComboBox drop-down arrow disappears Amandil <mazwolfe@gmail.com> - 2011-11-01 13:22 -0700
  Re: JComboBox drop-down arrow disappears Roedy Green <see_website@mindprod.com.invalid> - 2011-11-01 23:19 -0700
  Re: JComboBox drop-down arrow disappears Bent C Dalager <bcd@pvv.ntnu.no> - 2011-11-02 09:41 +0000
  Re: JComboBox drop-down arrow disappears "dp" <newsgroups@phagia.net> - 2011-11-06 12:14 +0000

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