Friends, Romans, Countrymonks, lend me your electrons. The following code works as I would expect, giving me a combobox containing a list of files: 
use strict;
use warnings;
use diagnostics;
use Tk;
use Tk::JComboBox;

my $wMain = MainWindow->new;
my $cboFile = $wMain->JComboBox() ->place(-x => 0, -y => 0); 

foreach (<*>) {
  $cboFile->addItem($_);
}
#$cboFile->showPopup;
 
MainLoop;

[download]
But if the comment character on the "showPopup" row is removed, not only does the list not appear, but there appears to be nothing in the combobox. However, getItemCount returns the number I would expect.

Actually, this isn't the problem I want solved. I came across this one while trying to cut the code down to demonstrate the actual problem, although I think the two are closely related. In the longer version of the code, the list appears, but is very narrow (5 units, I think), and nothing I have tried gets it to the width I get when simply clicking on the box to make it drop down.

Regards,

John Davies

In reply to Problem with Tk::JComboBox by davies

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