Tkx: Table Question

vladmaster99 has asked for the wisdom of the Perl Monks concerning the following question:

Here is some of my first TKX code what am I doing wrong. I would rather not rewrite the table into marked up text. Table looks so close to working the way I would like it to. This is not the actual program I am writing it is just a smaller bit of code that has the exact same error message and same line on which the error is occuring

#use strict;
use warnings;
use Tkx;

Tkx::package_require("Tktable");

my $mw = Tkx::widget->new(".");
%hash = 
    ( # data to display
     '0,0' => 'Goodby',
     '1,1' => 'cruel',
     '2,2' => 'world',
     );

%hash2 = 
    ( # data to display
     '0,0' => 'Goodby',
     '1,1' => 'cruel',
     '2,2' => 'world',
     );

my $t = $mw->new_table
    (
     -rows => 5,
     -cols => 3,
     -cache => 1,
     -variable => \%hash,
    );
$t->g_pack(-fill => 'both', -expand => 1);

$b=$mw->new_button
    (-text=>"Search",
     -command=>sub {Search()},
    );

$b->g_pack();

$b2=$mw->new_button
    (-text=>"Text",
     -command=>sub {Text()},
    );

$b2->g_pack();
sub Search()
{print("You rang?\n");
 %hash = 
    ( # data to display
     '0,0' => 'Hello',
     '1,1' => 'Great',
     '2,2' => 'world',
     );
};
sub Text()
{print("Yes Master?\n");
 %hash2 = 
    ( # data to display
     '0,0' => 'Hello',
     '1,1' => 'Great',
     '2,2' => 'world',
     );
};

Tkx::MainLoop();

use Data::Dump; dd \%hash;
use Data::Dump; dd \%hash2;
[download]

fails when search button pressed But works for text button. and hash is diffent from hash2 what is Tkx and tie doing?? Console output

D:\DATA\HOME\Perl>TableTest.pl
Yes Master?
You rang?
{
  # tied Tcl::Var
  active => "",
}
{ "0,0" => "Hello", "1,1" => "Great", "2,2" => "world" }

D:\DATA\HOME\Perl>TableTest.pl
Yes Master?
{
  # tied Tcl::Var
  "0,0"    => "Goodby",
  "1,1"    => "cruel",
  "2,2"    => "world",
  "active" => "",
}
{ "0,0" => "Hello", "1,1" => "Great", "2,2" => "world" }

D:\DATA\HOME\Perl>
[download]

Cheers for any help.

Comment on Tkx: Table Question Select or Download Code

Replies are listed 'Best First'.
Re: Tkx: Table Question by vladmaster99 (Initiate) on Oct 25, 2011 at 04:05 UTC
Well dear Monks I am perplexed the following code works with the "print Dumper(%hash);" included and fails with an "EXIST" error without line. Why??? #use strict; use warnings; use Tkx; use Data::Dumper; Tkx::package_require("Tktable"); my $mw = Tkx::widget->new("."); %hash = ( # data to display '0,0' => 'Goodby', '1,1' => 'cruel', '2,2' => 'world', ); %hash2 = ( # data to display '0,0' => 'Goodby', '1,1' => 'cruel', '2,2' => 'world', ); my $t = $mw->new_table ( -rows => 5, -cols => 3, -cache => 1, -variable => \%hash, ); $t->g_pack(-fill => 'both', -expand => 1); $b=$mw->new_button (-text=>"Search", -command=>sub {Search()}, ); $b->g_pack(); $b2=$mw->new_button (-text=>"Text", -command=>sub {Text()}, ); $b2->g_pack(); sub Search() {print("You rang?\n"); %hash = ( # data to display '0,0' => 'Hello', '1,1' => 'Great', '2,2' => 'world', ); print Dumper(%hash); #only works with this line in code }; sub Text() {print("Yes Master?\n"); %hash2 = ( # data to display '0,0' => 'Hello', '1,1' => 'Great', '2,2' => 'world', ); print Dumper(%hash2); }; Tkx::MainLoop(); [download]	[reply] [d/l]
Re: Tkx: Table Question by Anonymous Monk on Oct 25, 2011 at 10:42 UTC
Adding an explicit `return ;` to sub Search will eliminate the error I'm not sure where the bug lies, but I think there are two, one in Tcl for Tcl::Var, and one in Tkx for using the return value and not documenting how	[reply] [d/l]
Re^2: Tkx: Table Question by vladmaster99 (Initiate) on Oct 28, 2011 at 11:49 UTC
Thanks this fixed my problem thanks for the prompt reply.cheers < class="pmsig"> I have to start somewhere here is better than anywhere else	[reply]