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JavaRanch » Java Forums » Engineering » HTML, CSS and JavaScript
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Radio Validator

Zhixiong Pan
Ranch Hand

Joined: Jan 25, 2006
Posts: 239
Hi ranchers,

Below code attempts to validate the Gender radio button.
The error is that the objGender.length is undifined. Could you give me some help? Thanks.



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Sagar Rohankar
Ranch Hand

Joined: Feb 19, 2008
Posts: 2902
    
    1

"id" name must be unique one in whole HTML page. You just repeated 'txtGender' twice. Correct it.


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Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 60810
    
  65

After you fix your id problem, you can save yourself lot of code by using jQuery on your pages for things like this.

To check that one of the radio buttons is checked, the code would simply be:


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Zhixiong Pan
Ranch Hand

Joined: Jan 25, 2006
Posts: 239
I removed the ID, and correct to . And then the code can work as I expect.
Thanks.
 
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subject: Radio Validator
 
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