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Perl/Tk,How to limit the number of characters in Entry?

by perllee (Novice)
on Jan 19, 2013 at 05:29 UTC ( #1014170=perlquestion: print w/ replies, xml ) Need Help??
perllee has asked for the wisdom of the Perl Monks concerning the following question:

Hi,

Perl/Tk,How to limit the number of characters in Entry?For example, enter the product serial number.

Can you give an example? Thanks.

Comment on Perl/Tk,How to limit the number of characters in Entry?
Re: Perl/Tk,How to limit the number of characters in Entry?
by BrowserUk (Pope) on Jan 19, 2013 at 05:46 UTC

    See -validate => 'key', -ValidateCommand => sub { length( $_[0] ) <= 10 ? 1 : 0 } and the validation section of the Entry widget POD.


    With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.
      Thanks!!
Re: Perl/Tk,How to limit the number of characters in Entry?
by Anonymous Monk on Jan 19, 2013 at 07:40 UTC
      Thank you very much for your enthusiastic reply, the answer I need.

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