in reply to how to change Tk::Tree data value
If you set your data to an anonymous hash, you can adjust it as required.
then$tree->add('1.1',-text=>'aaa',-data=>{-info=>'aaa'});
Next time you get the infoData, it will have your new information.# get data my $d=$tree->infoData('1.1'); # change data $d->{-info}='new data';
UPDATE!
or you can use entryconfigure
# set entry $tree->add('1.1',-text=>'aaa',-data=>'aaa'); # change data for entry $tree->entryconfigure('1.1',-data=>'new data');
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