G'day PilotinControl,

Issues with the code you posted:

• Get into the habit of using lexical filehandes and the 3-argument form of open. The documentation has details.
• Check that your I/O was actually successful. Either hand-craft code for every I/O operation (open has examples) or use the autodie pragma; the latter is my normal preference as it's both less error-prone and far less work.
• You read all your data twice (while and for loops). You only need to do this once.
• I found your use of $lines (plural) confusing on first reading. That variable contains a single line: $line would be more appropriate and less of a maintenance issue.
• You chomp the array on every iteration of the for loop. You should do this once before you start the loop.
• You create a Tk::BrowseEntry widget on every iteration of the for loop. You should do this once before you start the loop.
• See insert() in the Tk::BrowseEntry METHODS section. The syntax is insert(index, string). Your usage of insert(index, array) possibly explains the earlier my @owners = $owner[1]; (which I found confusing when I first encountered it).
• While you can chain methods (e.g. BrowseEntry->pack->insert), you don't have to. Assign widgets you create to a variable; subsequently, use that variable to invoke methods.

The following script shows the guts of what you need.

#!/usr/bin/env perl

use strict;
use warnings;

use Tk;
use Tk::BrowseEntry;

my $mw = MainWindow->new;

my $ctrl_F = $mw->Frame->pack(-side => 'bottom');
$ctrl_F->Button(-text => 'Exit', -command => sub { exit })->pack;

my $app_F = $mw->Frame->pack(-side => 'top');
my $be = $app_F->BrowseEntry->pack;

while (<DATA>) {
    chomp;
    $be->insert(end => (split /:/)[1]);
}

MainLoop;

__DATA__
prefix:Owner A
prefix:Owner B
prefix:Owner C
[download]

As you can see, although that's very short, it's a working script that you can run (as is). It contains no distracting noise (e.g. widget decorations, foreground/background colours, etc.) and merely addresses the issue at hand. Please attempt to provide something like this when you post your next question.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.