Thanks Ted.
So if I want to keep the checkbox metaphor (rather than use a radio button,
which might confuse the UI), I should use an image of a checkbox (in either
of it's states). Yes?
Is there an obvious way to derive a mapping between the Form bean and the
image on the JSP?
Thanks for your help.
-Chris
> -Original Message-
> From: Ted Husted [mailto:[EMAIL PROTECTED]]
> Sent: Saturday, February 23, 2002 4:32 PM
> To: Struts Users Mailing List
> Subject: Re: Checkbox state not changing after "checked on"
>
>
> The underlying problem is that the HTML spec tells the browsers to not
> submit a checkbox if it is not checked. (Or any other blank control for
> that matter.) There's not a lot we can do about that =:o(
>
> What happens with a box that starts out checked, is that when it is
> unchecked, nothing is submitted. If the box represents a persistent
> state, it just stays checked, since nothing turned it off.
>
> Some times a radio button is a better way to go, since something will
> always be submitted.
>
> The reset method grew out of a need to set the checkboxes to a known
> state, to get around this quirk of HTML.
>
> The alternative is to scan the request for the missing checkboxes, and
> set them as expected if they are missing.
>
> -- Ted Husted, Husted dot Com, Fairport NY US
> -- Developing Java Web Applications with Struts
> -- Tel: +1 585 737-3463
> -- Web: http://husted.com/about/services
>
> Chris Means wrote:
> >
> > I'm having a problem with setting check box states on my form.
> >
> > I have a checkbox on my form, it's supposed to be "checked" if muting is
> > occurring, and not checked otherwise.
> >
> > The user just needs to click the checkbox to change/toggle the state.
> >
> > However, I only seem to get an Action setting if the checkbox is not
> > checked...any ideas what I'm doing wrong? Shouldn't the property be set
> > regardless of the state of the object?
> >
> > My JSP:
> >
> > >onclick="this.form.submit ()" />Mute
> >
> > My FormBean:
> >
> > public void setMute (boolean newMute)
> > {
> > mute = newMute ;
> > action = "mute" ;
> > }
> >
> > My ActionForm:
> >
> > ControlPanelForm cp = (ControlPanelForm) form ;
> >
> > String action = cp.getAction () ;
> >
> > System.out.println ("Action: " + action) ;
> >
> > if ("mute".equals (action))
> > api.mute () ;
> >
> > status.refresh () ;
> >
> > cp.setMute (status.isMuted ()) ;
> >
> > return (mapping.findForward ("success"));
> >
> > TIA.
> >
> > -Chris
> >
> > --
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