Dear Monks,

I would like to know if there is way for me to restrict my user from what he can enter in an entry widget, but at the same time have a default value in that widget as the application loads. The code below does not display the value in the entry widget: 
#!/usr/bin/perl -w
use strict;
use Tk;


my $page2;
my $w=0;  
my $wtf; 
my $wentry= 3; 
my $wcb;

$page2 = MainWindow -> new();
$wcb = $page2 ->Checkbutton (-text=> '/W:', -variable=> \$w, -font=>"A
+dobe 10")->pack;
#$wcb->select();
$wtf = $page2 ->Entry (-textvariable=> \ $wentry, -width=>8,
            -validate=> 'key', 
            -validatecommand=> sub{$_[1] =~/[0-9]/},
            -invalidcommand=> sub{$page2->bell}
)->pack;
MainLoop;

[download]

However, if I comment out the 

-validatecommand=> sub{$_[1] =~/[0-9]/},

[download]
line, it works great.

Thanks in advance for any idea about how I could have the best of both world. -- I would like to not have to check what crap the user can give me after the fact.

Claire

In reply to Entry widget, default value and validatecommand by Real Perl

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