Make it:

<cfinput type="checkbox" name="all" checked="#form.all#" value="yes">

The default value for a checkbox, if checked, is 'on'.  We need it to be
'yes' instead, so we set it explicitly.  Now when the form reloads, checked
will be 'yes' if it was already checked and 'no' (from the <cfparam> tag at
the top) if it wasn't checked.

Almost there!

Dave

-----Original Message-----
From: Barry Mcconaghey [mailto:[email protected]] 
Sent: Wednesday, July 15, 2009 11:33 AM
To: cf-newbie
Subject: Re: Session Variables


I'm rec. this error if the checkbox (name="all") is checked and I type the
wrong captcha letters or numbers.

cannot convert the value "on" to a boolean 


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