Cfform using cfif in action= causes error

Question

Hi,
Just ran into a code problem I haven't seen before. To use
the CF validation for some text input, I've changed some of our
<form's to <cfforms> However, If I want to check for the
existence of a URL param before trying to send it in the action= of
the <cfform, CF screws up the evaluation of other variables. In
the example below, the value of the URL variable Stoken becomes
"12345<cfif isDefined ......" . This code works fine in a
<form action=, but not in <cfform.
I would like to keep the <cfif isDefined() in the code
because the alternative is to edit a lot of other templates. Any
suggestions why this isn't working?
Thanks,
Doug

Answer 1

You can't nest tags like this:
<cftag1 <cftag2>>
Attaching url variables to a form action attribute is
generally not done. I didn't even realize it would work. More
conventional methods are to use session variables which don't need
to be passed, or to use hidden form fields to pass url
variables.