Hi there, I'm a bit out of my depth here but I have a problem and I'm hoping someone can help... I created a simple product containing a Z-Class with various properties (along the lines of the Beehive tutorial). I then created both management interface and web based forms for creating instances of this Z-Class. It works great...but I would now like to add a date property to the Z-Class - so that I can conduct searches of all the Z-Class instances by date. In order to add the date property to the Z-Class I had to include a default value in the property sheet - no problem there. However when I come to add an instance through my web based forms I get the following error: Error type: Invalid Date-Time String Error value: The date value from my form is passed as a hidden field with the following: value = "<dtml-var expr="_.DateTime().Date()">" which I believe to be a valid format. I have a feeling what is happening is that the date value is simply not reaching the object manager when I create the Z-Class instance - it is created as follows: <dtml-call "REQUEST.set('PostingNo.',REQUEST.form['new_PostingNo.'])"> <dtml-with "manage_addProduct['portal_posting']"> <dtml-call "posting_class_add(_.None,_, NoRedir=1)"> </dtml-with> <dtml-in "objectValues(['posting'])"> <dtml-if "(_['sequence-item'].id == REQUEST.form['new_PostingNo.'])"> <dtml-call "REQUEST.set('our_posting',_['sequence-item'])"> </dtml-if> </dtml-in> <dtml-call "_['our_posting'].propertysheets.posting_description.manage_changeProperties ({ 'Author' :REQUEST.form['new_Author'], 'Title' :REQUEST.form['new_Title'], 'Topic' :REQUEST.form['new_Topic'], 'Lead' :REQUEST.form['new_Lead'], 'Body' :REQUEST.form['new_Body'], 'Date' :REQUEST.form['new_Date'] })"> It's probably worth pointing out that I can add instances (complete with a date property) through the management interface forms. Any ideas on how I could get the Date value to be passed through web based forms would be greatly appreciated!! Thanks, Matt -- Matthew Anderson - Web Designer - Frontier Internet Services Limited Tel: 029 20 820 019 Fax: 029 20 820 037 http://www.frontier.net.uk Statements made are at all times subject to Frontier's Terms and Conditions of Business, which are available upon request.