Hi,

Yes it is possible to explain the behavior

This is forgetting all the textvariables , its making the textvariables forget the array, its disconnecting the array values from the textvariables  @var1 = change_var1_2(@var1);

If you do that then the textvariables are lost, the references no longer point to the array 

#!/usr/bin/perl --
use strict; 
use warnings;
use Data::Dump qw/ dd / ;
my @f = 0; 
my $fo = \$f[0];
dd\@f;
$$fo++; ## @f is updated
dd\@f;
@f=(); ## $fo no longer points to @f, $fo and @f disconnected
$$fo++;
dd\@f;
__END__
[0]
[1]
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[download]

Also names, like like variable names, for example @var1/$var1[] ; if you read that out loud it is array variable variable one the @ part tells us its a perl variable of the array variety (array for short), so "var" shouldn't be part of the name

Similarly 1 shouldn't be part of the name, but thats what you have left @1

I would call it @chg or whatever "chg" stands for, maybe @change, something with meaning

In reply to Re: TK "textvariable" not updating with @var but ok with $var by Anonymous Monk
in thread TK "textvariable" not updating with @var but ok with $var by mark4

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