Solved

Dynamically select radio button based on value

Posted on 2011-02-20
4
370 Views
Last Modified: 2012-05-11
Hi there,

I have some code that I changed from a select box to a list of radio buttons. What I don't know how to do is make the first radio button in the list checked as default.
 <?php while (wpsc_have_variation_groups()) : wpsc_the_variation_group(); ?>

<label for="<?php echo wpsc_vargrp_form_id(); ?>"><?php echo wpsc_the_vargrp_name(); ?>:</label>
<br />

<?php /** the variation HTML and loop */?>

<?php while (wpsc_have_variations()) : wpsc_the_variation(); ?>

<input type="radio" value="<?php echo wpsc_the_variation_id(); ?>" name="variation[<?php echo wpsc_vargrp_id(); ?>]" class="wpsc_select_variation" id="<?php echo wpsc_vargrp_form_id(); ?>"  />
<?php echo wpsc_the_variation_name(); ?>
<br />
<?php endwhile; ?>

<?php endwhile; ?>

Open in new window


There will only be 3 radio buttons and they have a value of 1 2 and 3. I need value 1 to be checked each time that page originally loads, and then they can change it to other options if they need to.

Thanks for your help




0
Comment
Question by:carlyblack
  • 2
  • 2
4 Comments
 
LVL 6

Expert Comment

by:MatthewP
ID: 34939790
As far as the HTML goes all you need to do is add the attribute "checked" to it

<input type="radio" name="name" value="value" checked="checked" />

A quick and easy way to do this for the first one only in your php would be modifying your lines 8-13 above with this:

$checked="checked"
<?php while (wpsc_have_variations()) : wpsc_the_variation(); ?>

<input type="radio" value="<?php echo wpsc_the_variation_id(); ?>" name="variation[<?php echo wpsc_vargrp_id(); ?>]" class="wpsc_select_variation" id="<?php echo wpsc_vargrp_form_id(); ?>"  checked="<?php echo $checked; ?>" />
<?php echo wpsc_the_variation_name(); ?>
<br />
<?php $checked=""; ?>
<?php endwhile; ?>

Open in new window



0
 

Author Comment

by:carlyblack
ID: 34939818
Hi Thanks for your quick response.

when I did this it showed the last one in the list as checked, and then when I viewed the source code each of the options had checked="checked"

Any further ideas please?
0
 

Author Comment

by:carlyblack
ID: 34939826
sorry, just made a slight adjustment and now it's only showing in the source code as the first one checked="checked" but it's actually checking the 3rd on in the list.
0
 
LVL 6

Accepted Solution

by:
MatthewP earned 500 total points
ID: 34940057
Try loading the page from scratch rather than refreshing, if you've checked the 3rd one anyway the browser may be remembering your setting.
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will explain how to display the first page of your Microsoft Word documents (e.g. .doc, .docx, etc...) as images in a web page programatically. I have scoured the web on a way to do this unsuccessfully. The goal is to produce something …
This article discusses four methods for overlaying images in a container on a web page
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question