Hello Monks,

I cannot understand: how to make the black border not to appear around the Tree widget just after the first hiding/showing (pushing signs -/+) inside this widget? It breaks the style of the all window.

The Tree is managed by grid; it's itemtype is 'window' (because contains labels and checkbuttons).

I tried to set borderwidth and selectborderwidth both to 0. It didn't help.

In short, my code looks like: 

$tree-> = $pane->Tree(
   -width        => 30,
   -height        => 1500,
   -itemtype         => 'window',
   -relief                 => 'flat',
   -borderwidth            => 0,
   -selectborderwidth    => 0
)->grid(
   -row         => $row,
   -column         => 0,
   -columnspan        => 2,
   -sticky        => 'w'
);

[download]

Then, inside a loop: 

my $ref1 = $tree->Label(
   -text         => $_,
   -anchor         => 'w'
);
$tree->add(
   $_,
   -window        => $ref1
);

[download]

And then, inside another loop: 

my $ref2 = $tree->Checkbutton(
   -text         => $_, 
   -variable         => \$var,
   -anchor         => 'w'
);
$tree->add(
   $parent.'.'.$column,
   -window            => $ref2
);

[download]

In reply to Perl/Tk, how to make the black border not to appear around the Tree widget by Anonymous Monk

Title:
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