Sorry, the whole program is 1000+ lines. I'll try to be more clear. I have two tree views, and I want a person to be able to select an element from one, press a button, and have that element to be added the second treeview on the right. Below are the declarations for both lists, The first is $Envs, the second is $EnvsToRun. Also, where I fill the first list, get the element that I want to put into the second list, and where I add the element to the second list. $duration and $config are variables that I am not having problems with. 

$Envs = Gtk2::Ex::Simple::List->new_from_treeview ( $abaNewWindow->get
+_widget('Envs'), 'Environments' => 'text');
$EnvsToRun = Gtk2::Ex::Simple::List->new_from_treeview ( $abaNewWindow
+->get_widget('EnvsToRun'), 'Environments' => 'text', 'Duration' => 'd
+ouble', 'Config' => 'int');


open(ENVIRONMENTS, "environments.txt");
while(<ENVIRONMENTS>){

my $line = $_;
chomp($line);
push @{$Envs->{data}}, $line;
}
close(ENVIRONMENTS);

$environment = shift @{$Envs->{data}};
print $environment;

push @{$EnvsToRun->{data}}, [$environment, $duration, $config];

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In reply to Re^6: Shift returning pointer by rgb96
in thread Shift returning pointer by rgb96

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