On Mon, Jul 12, 2004 at 08:57:58AM +1000, Scott Thornton wrote:
> I am creating a bunch of checkboxes on the the fly with a cfloop.
>
> How do i check for their existance in an action page (within a cfloop)?
>
> ISDEFINED("FORM[RECLAIM_ & loopindex]") returns this error:
>
> Parameter 1 of function IsDefined, which is now "FORM[RECLAIM_ &
> loopindex]", must be a syntactically valid variable name.
>
> and
>
> ISDEFINED("FORM["RECLAIM_" & loopindex]") causes "Invalid CFML construct
> found"
Since the FORM is a structure, try: StructKeyExists(form,"RECLAIM_#loopindex")
Another thing you might like to do is predefine the variables. By that I
mean if you know you'll be looking for checkboxes, add a hidden field
with the same name and no value. That way the form variable will always
exist.
ie: <input type="checkbox" name="foo">
<input type="hidden" name="foo" value="">
Since they're the same name the values will get concatenated when it
gets posted.
Cheers
Paul Haddon
Technical Services Manager
Formstar Print Technologies
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