Hi, first in your example, it's "use Tk::Table;"

Second, Tk::TableMatrix is a better widget, and you can get active cells with it, with

myTableMatrix->index('active');
[download]

There are some ideas in how to disable the button untill certain fields are filled?

To get current cell, you can do something like

#!/usr/bin/perl
use warnings;
use strict;
use Tk;
use Tk::Table;

#The key point is that the scroll bars only scroll non-fixed columns.

my $mw = MainWindow->new;
#$mw->geometry("200x200");

my $x;
my $y;


my $table = $mw->Table
  (-rows => 9, -columns => 9, -fixedrows => 9)->pack;
    
  foreach my $row (0 .. 8) {
      foreach my $col (0 .. 8) {
              my $cell = $table->Entry (-width => 4, -text => "$col, $
+row");
                  $table->put ($row, $col, $cell);
  
      $cell->bind('<ButtonPress-1>' => sub{ $x = $col; $y = $row  });
  }
}

my $button = $mw->Button(-text => 'Get Current',
                -command => sub{
             print "$x $y\n";
        })->pack();
              
MainLoop;
[download]

also look at this example

#!/usr/bin/perl
use warnings;
use strict;
use Tk;
use Tk::Table;

my $mw= tkinit;
#$mw->geometry("400x400+100+100");

my $table = $mw->Scrolled('Table', 
                        -rows =>4,
            -columns => 4,
                        -fixedrows => 5, #trick to hide scrollbars
                        -fixedcolumns => 5,
                        -scrollbars => 'osoe',
            -takefocus => 1,)->pack(-fill=>'both',
                                          -expand=>1);

my %widgets;

for my $row(1..4){
  for my $col(1..4){

    $widgets{$row}{$col} = $table->Button(
               -text=> "$row - $col",
           -background => 'white',
           -command => sub{ do_me($row,$col) }
         );
           
    $table->put( $row,$col,$widgets{$row}{$col} );
  }
}

MainLoop;

sub do_me{
  my ($row, $col) = @_;
  print "$row $col\n";
 
}
[download]

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