[Javascript] How to prevent user from selecting in select box

[Chris T]

Ah.  I didn't know you had a problem with multiple fields by the same name.
It is entirely possible though to store an array corresponding to your form
fields instead of hidden fields.

It'd be quite easy. As soon as the page loaded, create an array with as many
elements as there are disabled form fields on the page. And store the values
of those fields in the array.

Chris Tifer





----- Original Message ----- 
From: "Antony Paul" <antonypaul24 at hotmail.com>
To: "[JavaScript List]" <javascript at LaTech.edu>
Sent: Thursday, April 01, 2004 11:13 PM
Subject: Re: [Javascript] How to prevent user from selecting in select box


> I acknowledge that you suggested reverting the changes in the onchange()
> event.
> The problem with hidden field is when checking the value.length it will
give
> error when there is another disabled field with same name .  It was
possible
> to avoid this error by assigning a different name to the hidden field. But
> for that I have to change the JSP coding.
>
> Thanks for the suggestions
> Antony Paul
>
> ----- Original Message -----
> From: "Chris T" <christ at saeweb.com>
> To: "[JavaScript List]" <javascript at LaTech.edu>
> Sent: Thursday, April 01, 2004 7:38 PM
> Subject: Re: [Javascript] How to prevent user from selecting in select box
>
>
> > > Using hidden field also is not viable because of javascript
validation.
> It
> > > will throw error when checking the obj.value.length.
> >
> > I'm a little confused on this statement.  Why will it throw an error
when
> > checking the length of a value?
> >
> > > At last I found a solution. Keep the select box enabled. When loading
> the
> > > page create a two dimensional array which contains name and values of
> > select
> > > boxes to be disabled. In the onchange() event of select box call a
> > function
> > > which checks this name in the array and if found it restore its value
> with
> > > one found in the array. It works for me.
> >
> > I think if you look back, you'll see that I suggested something similar
> > since all js-enabled browsers wound (should) be able to handle. I even
> > suggested that you alert the user of why it reverted to the original
> value.
> >
> > Now if you wanted to take this one step further - at the risk of having
> the
> > code rendered useless in some browsers - you can add custom attributes
to
> > that element and read those in the onChange event. Something like
> > isDisabled="true" originalValue="4" or something along those lines.
> >
> > Chris Tifer
> >
> > _______________________________________________
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> > Javascript at LaTech.edu
> > https://lists.LaTech.edu/mailman/listinfo/javascript
> >
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