Forms and Form Data

Checkbox Groups

• The checkbox group construct allows you to click boxes to tag elements within a list of related items.
• The Perl CGI construct to create a checkbox group:
  

  # Generate a checkbox for selecting zero or more elements from a list
  print $query->checkbox_group({-name=>'CheckboxOne',
  			      -values=>['First Box','Second Box', 'Third Box',
  			                'Fourth Box', 'Fifth Box'],
  			      -defaults=>['Second Box','Fifth Box']});
  

• The Perl CGI construct to then later extract the checkbox elements selected would be
  

      # Extract out whatever the contents of our checkbox were.
      my @textInput = $query->param(-name=>'CheckboxOne');
      print $query->hr();
      print $query->p('The checkbox entries you selected were:'), $query->br();
      print $query->em({-align=>'center'}, @textInput);
      print $query->hr();