http://qs321.pair.com?node_id=1095058

glenn has asked for the wisdom of the Perl Monks concerning the following question:

Hi monks. So because I love pain I want to know if anyone else has found such a solution to this bug lack of functionality. The BrowseEntry which provides a drop down has 3 functions: insert, delete, and get. I want a fourth 'set', rather than defining yet another global var as I already pass the obj to insert/delete I would love to be able to '->set(0)' to set the current value to index 0 of the list. Any suggestions or pointing in the correct direction would be appreciated. Thank you for your time.

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Re: Tk::BrowseEntry set function
by zentara (Archbishop) on Jul 25, 2014 at 16:45 UTC
    You don't show any code, but this should show you how to set things. You just set your array elements, and update. You can use ->configure to set -choices and -variable 
    #!/usr/bin/perl
use Tk;
use Tk::BrowseEntry;
use strict;

my @choices = (1..50);
my $choice = (@choices)[0];

our $dlg = MainWindow->new();

my $blist  = $dlg->BrowseEntry( -choices => \@choices,
                                -variable => \$choice)->pack;

my $lb = $blist->Subwidget("slistbox");
$blist->configure(-listcmd=>sub{$lb->focus});

MainLoop;

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Re: Tk::BrowseEntry set function -solved
by glenn (Scribe) on Jul 25, 2014 at 19:44 UTC

    UPDATE: found problems with the previous code when having multiple BrowseEntry objects. This however works. 

    #!/usr/bin/perl
use Tk;
use Tk::BrowseEntry;
use strict;

my $mw = MainWindow->new();

my $hddSel = $mw->BrowseEntry()->pack;

foreach my $c (1..50) {
  $hddSel->insert("end",$c);
}

$hddSel->Subwidget("slistbox")->selectionSet(0);
$hddSel->LbCopySelection($hddSel); #use the widgets internal method to
+ copy the selected value to the entry
print "CURRENT VALUE: ".$hddSel->Subwidget("slistbox")->get((@{$hddSel
+->Subwidget("slistbox")->curselection})[0])."\n";


MainLoop;

sub getValue {
    my ($getW) = @_;
    return $getW->cget( '-textvariable' );
}

sub setValue {
    my ($setW, $index) = @_;
    my $lb = $setW->Subwidget('slistbox')->Subwidget('listbox');
    my $var_ref = $setW->cget('-textvariable');
    $lb->selection('clear', 0, 'end');
    $lb->selectionSet($index);
    $$var_ref = $lb->get($index);
    return;
}

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