Doh - my fault... RTFM I think... I think I misread the linked page. When unmarshalling the records, Zope will only create a new record in the list if the current record already has the given attribute. So, provided you always put the textboxes before the checkboxes, it will always work. Unless there are non-compliant browsers out there... Regards, Phil +----------------------------------+ | Phil Mayers, Network Support | | Centre for Computing Services | | Imperial College | +----------------------------------+ -----Original Message----- From: Mayers, Philip J Sent: 18 January 2001 12:26 To: 'zope@zope.org' Subject: Data type coercion and "records" *Now* I remember why I like Zope so much... I'm using the ":records" to marshall a complex hierarchical form, and I'm a little worried by this comment: http://www.zope.org/Members/Zen/howto/FormVariableTypes <snip>