NAME

HTML::Widget::Constraint::Callback - Callback Constraint

SYNOPSIS

    my $c = $widget->constraint( 'Callback', 'foo' )->callback(sub { 
        my $value=shift;
        return 1;
    });

A callback constraint which will only be run once for each submitted value of each named field.

Arguments: \&callback

Define the callback to be used for validation.

"cb" is an alias for "callback".

perform the actual validation.

Sebastian Riedel, "sri@oook.de"

Marcus Ramberg, "mramberg@cpan.org"

This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.