[Zope] dtml-if and checkboxes

[Hires, Russell (CAP, CARD)]

Well, I got one better:
><dtml-if check_box>
The check box is checked!
</dtml-if>

This works because if it's checked, then it's there. If it isn't checked, it
isn't there, and it fails. So no output. 

Thanks for pushing me in the right direction. 

Russell

-----Original Message-----
From: Meilicke, Scott [mailto:scott.meilicke@intp.com]
Sent: Friday, October 04, 2002 4:30 PM
To: Hires, Russell (CAP, CARD); 'zope@zope.org'
Subject: RE: [Zope] dtml-if and checkboxes


<dtml-if check_box> 
<dtml-if expr="check_box == ('on')"> 
The check box is checked! 
</dtml-if> 
</dtml-if> 
The above should work, but there may be a better way... Maybe something like
<dtml-if "check_box and check_box == ('on')">, not sure though.
Scott 
-----Original Message----- 
From: Hires, Russell (CAP, CARD) [mailto:Russell.Hires@gecapital.com] 
Sent: Friday, October 04, 2002 1:15 PM 
To: 'zope@zope.org' 
Subject: [Zope] dtml-if and checkboxes 


Hey All, 
I'm experimenting with zope again, playing with the REQUEST object and form 
objects. In my latest delimma, I've got the following snippet: 
<dtml-if expr="check_box == ('on')"> 
The check box is checked! 
</dtml-if> 
What I don't get: if the checkbox is checked in the form, then this works, 
and I get the output. If it isn't checked, then I get an error saying that 
the checkbox ("check_box" in the form) isn't defined. This is borne out as 
well by <dtml-var expr="REQUEST.form">, which shows a text box's name and 
the value that it holds (whether it holds a value or not), and the 
checkbox's name and value ('on'), when it's checked. If it isn't checked, it

isn't there at all. So, I guess I'm going to have to look to see whether 
it's there or not, right? How would I do that? 
Thanks for the help! 
Russell 
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