Thank you AppleFritter.
Where exactly did I go wrong? Could you explain please? I had a look at the doc and seen that deselect would deselect the checkbuttons but I tried and no luck. I guess I was selecting the wrong element to reference.



I see what made the difference was the button sub.

my $connButton = $mw->Button(
    -text       => "Connect",
    -command    => sub {
        my @networks = grep { defined } @checkbox;
        if(@networks == 1) {
            say $networks[0];
        } else {
            say "Select one network, please.";
        }
    }

[download]

I didn't post with the original code, at least I dont think but here was my version of the checkbutton function. Essentially the same as yours. 



        open my $FILE, '<', "ESSID", or die "Can't open file: $!";

my @lines = <$FILE>;

my @Sel;
my $i = 0;
my @Selected;
my $checkButton;
foreach my $n ( @lines ) {

        chomp $n;

                $checkButton =  $mw->Checkbutton( -text => "$n",
                                                  -onvalue => 1,
                                                  -offvalue => 0,
                                                  -command => sub{push
+(@Sel, $n)} && sub{ $Selected[$i] = defined $Selected[$i] ? undef : $
+n;},
                                                  -variable => \$Selec
+ted[$i], )->pack(   -side => 'top',
                                                                      
+                    -anchor => 'nw' );
        $i=$i+1;

}

[download]

In reply to Re^2: reset checkbutton value by amboxer21
in thread reset checkbutton value by amboxer21

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