Hi everyone. I am creating a basic GUI using Perl Tk and i have a feature i want to implement that i was hoping i could get some assistance with. Basically i have two entry widgets and a single button. Initially i want the button to be in the "disabled" state and to remain in this state under all conditions until both entry widgets have text in them. OnIt is at this point, i would like the button to then be changed into the "normal" state.

Assuming i am working on the main window. I have the following code 

my $firstentry = $mw->Entry()->pack();
my $secondentry = $mw->Entry()->pack();

$but = $mw -> Button(-text => "OK", -state=>'disabled')->pack();

[download]

I guess at this point, i am after some ideas as to how i could trigger an event only when both entry widgets have text in them. This event would change the state of the button. The Entry widget does not have a -command feature. So that is out of the picture. I dont have much experience with the validate feature. Would this be able to help? Thanks. colpwd

In reply to Perl Tk - Change button state based on event by colpwd

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