[Zope] Add a ZClass-Instance with file properties

[Klaus Herrmann]

Hi!

I have a ZClass with File properties, but i can't create objects of that type.
i added a file selection to the addForm:
<input type=file name="file" size=30>
but when i click "Add", i get an error message:

Error Type: TypeError
Error Value: unsliceable object
..
File /usr/local/www/Zope/lib/python/DocumentTemplate/DT_Util.py, line 334, in
eval
    (Object: dataFile.createInObjectManager(REQUEST['id'], REQUEST))
    (Info: REQUEST)
  File <string>, line 0, in ?

what is happening? the code in add is absoulutely normal:
<dtml-with "dataFile.createInObjectManager(REQUEST['id'], REQUEST)">


any ideas? do i have to do anything else?
Zope is 2.3.1

thanks in advance!

regards,
	Klaus

-- 
Klaus Herrmann <klaus.herrmann@goelz.com>
Goelz & Schwarz GmbH, Munich
www.goelz.com
phone:+49 - (0)89 - 544 67 0 22
fax: +49 - (0)89 - 544 67 0 10