Solved

How can I dynamic check a radio button?

Posted on 2002-05-03
4
182 Views
Last Modified: 2006-11-17
I have serveral radio button and a field, based on user input, I want to dynamic check the corresponding radio button, is it possible?
0
Comment
Question by:huixu01
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 33

Accepted Solution

by:
knightEknight earned 100 total points
ID: 6988777
yes, but please provide more details ... what user input?  Can you show us the code for your form?
0
 
LVL 53

Expert Comment

by:COBOLdinosaur
ID: 6988831
Basic testing for radios:

<script language="JavaScript">
<!--
function testrad()
{
   obj=document.myform.rads;
   for (i=0;i<obj.length;i++)
   {
      if (obj[i].checked)
      {
         alert('radio '+i+' is checked with a value of '+obj[i].value);
         return;
      }
      alert('No radio has been checked')
   }
}
//-->
</script>

this assumes:

<form name="myform">
   <input type="radio" name="rads" value="A">
   <input type="radio" name="rads" value="B">
   <input type="radio" name="rads" value="C">
   <input type="radio" name="rads" value="D">
</form>

Now if you post a little more detail of what you need, or your code, we will be happy to supply the detail you need.

Cd&
0
 
LVL 22

Expert Comment

by:CJ_S
ID: 6988914
Example:

<script language="javascript">
function checkCorresponding(fObj)
{
   val = fObj["myval"].value;
   rObj = fObj["rad"];
   switch(val)
   {
      case "val1":
         rObj[0].checked=true;
         break;
      case "val2":
         rObj[1].checked=true;
         break;
      case "val3":
         rObj[2].checked=true;
         break;
      case "val4":
         rObj[3].checked=true;
         break;
   }
}
</script>

<form name="myform">
 <input type=text onkeyUp="checkCorresponding(this.form)" name="myval">
 <input type=radio name="rad">
 <input type=radio name="rad">
 <input type=radio name="rad">
 <input type=radio name="rad">
</form>
0
 
LVL 22

Expert Comment

by:CJ_S
ID: 6988915
I agree though with keK and Cd&. please provide more input
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
How to calculate height of a text using jquery 3 42
Coding for the first time 9 67
Can't get js code to execute 8 31
selected value 16 25
This article shows how to create and access 2-dimensional arrays in JavaScript.  It includes a tutorial in case you are just trying to "get your head wrapped around" the concept and we'll also look at some useful tips for more advanced programmers. …
This article discusses how to implement server side field validation and display customized error messages to the client.
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

749 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