This is an HTML issue.
Lots of discussion in the archives about this:
A recent one:
http://www.mail-archive.com/struts-user@jakarta.apache.org/msg06473.html
Niall
> -----Original Message-----
> From: JeanX [mailto:[EMAIL PROTECTED]]
> Sent: 15 May 2001 04:00
> To: struts-user
> Subject: is it a bug of CheckboxTag
>
>
> Hi struts-user,
>
> If I uncheck a checkbox, there is no corresponding parameter pair
> in request.
> So I can not get the right status of certain form.
> How to resolve it ?
>
>
> :=)
> Best regards,
> JeanX
> pacificnet.com(GZ)
>
>