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7.6

CGI beginner - why no refresh?

Asked by GSD4ME in CGI Scripting

Tags: refresh, cgi, start_html

I think I may under a misapprehension as to what CGI is all about.
I have debugged and debugged my perl software down to a point wherby it is a simple item that is going wrong. (The bones of the code are below)

Why does this code not give me "Fred" in my text area? I know that the correct path is being followed when I press the button as the printing of the string "$MyString" at the end of the code gives me the correct printout - it just doesn't refresh my text area.

I was under the apprehension that if I send a whole new web page, this would replace what was on the screen but it doesn't seem to.
What am I missing when it comes to CGI?
How do I refresh what is on my screen?

Many thanks from a CGI beginner.

use CGI;
$co = new CGI;

if ( ! $co->param())
{
  $MyString = "Hello";
  DrawPage();
}
else
{
  if ($co->param('MyButton') ne "")
  {
    HandleRequest();
    DrawPage();
  }
}

sub HandleRequest
{
  $MyString="Fred";
}

sub DrawPage
{
  print
        $co->header(),
      $co->start_html
      (
      ),
      $co->start_form(),

          $co->textarea
          (
            -readonly=>'true',
            -name=>'MyArea',
            -default=>$MyString,
            -rows=>10,
            -columns=>45
          ),
           $co->submit
            (
              -name=>'MyButton',
              -value=>'Button'
            ),
      $co->end_form,
      "$MyString",
      $co->end_html;
 }
[+][-]07/04/02 02:34 AM, ID: 7129472Expert Comment

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[+][-]07/04/02 02:37 AM, ID: 7129476Expert Comment

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[+][-]07/05/02 11:55 AM, ID: 7132711Accepted Solution

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About this solution

Zone: CGI Scripting
Tags: refresh, cgi, start_html
Sign Up Now!
Solution Provided By: VEngineer
Participating Experts: 3
Solution Grade: A
 
[+][-]07/06/02 12:28 AM, ID: 7133503Expert Comment

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[+][-]07/06/02 05:48 AM, ID: 7133719Expert Comment

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[+][-]07/06/02 06:44 AM, ID: 7133775Expert Comment

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[+][-]07/10/02 01:56 AM, ID: 7142813Author Comment

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[+][-]06/11/04 03:19 PM, ID: 11293053Author Comment

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