You can't actually capture the subref with arguments in this manner. It's actually calling the sub immediately and your callback ends up being a reference to whatever is returned by your sub. To get around this, Tk callbacks accept the subref and arguments as an anonymous arrayref. See 'perldoc Tk::callbacks' for details but what you want is: 
$action->command(-label=>"Sort by Number", -command => [\&queryDB, 'it
+em_number']);

[download]
... and likewise for the other.

- danboo

In reply to Re: Perl/Tk parameters by danboo
in thread Perl/Tk parameters by Anonymous Monk

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