Hi, nice example. Maybe this is a stupid observation, but the original code works if I put the -options into the dialog add statement. Maybe there is a good reason why you put them into a separate configure? I'm guessing that the problem comes from the -textvariable reference not detecting the change to \$id.

  my $id = $sel || (@ids && $ids[0]) || '';
  
  my $IDText = $dlg->add (
        'JComboBox',
        -options => \@ids,
        -mode => 'readonly',
        -selectcommand => [\&changeEditPlayer, \$id],
        -validate => 'match',
        -textvariable => \$id,
        );
    
#    $IDText->configure (-options => \@ids);
    $IDText->setSelected ($id);
    return if $dlg->Show (-global) ne 'OK';
}
[download]

Another way I sometimes use, is to set the -textvariable directly to the first array element. This works, but I really havn't tested it, for glitches. :-)

#!/usr/bin/perl
use strict;
use warnings;
use Tk;
use Tk::DialogBox;
use Tk::JComboBox;

my $main = MainWindow->new (-title => "Test JComboBox");
EditPlayers ($main);

sub EditPlayers {
    my ($main, $sel) = @_;
    my @ids = qw(Fred Joe Bob);
    my $dlg = $main->DialogBox (-title => "Member Information", -butto
+ns => ["OK", "Cancel"]);

    my $IDText = $dlg->add (
        'JComboBox',
    -options => \@ids,
        -mode => 'readonly',
        -selectcommand => [\&changeEditPlayer, \$ids[0]],
        -validate => 'match',
        -textvariable => \$ids[0],
        );
    
    $IDText->form (-left => '%0', -right => '%100', -top => '%0');

#    $IDText->setSelected ($ids[1]);  #works

    return if $dlg->Show (-global) ne 'OK';
}


sub changeEditPlayer {
    my ($id, $widget, $index, $value, $name) = @_;

    return 1 if ! defined $name;
    print "$name\n";
}
[download]