Hi, some widgets may require a valid context to work properly. one such widget is z3c.formquery. The attached patch passes the current widget's context to the sub widgets during data conversion in z3c.form.converter.MultiConverter. The patch handles this the same way as passing the form property is implemented. (The patch is against current trunk). Sorry, but I was not sure how to add a test for this. (However, there is also no explicit test for passing the form property). I ran the current test suite with python2.4 and it did not cause any additional issues :) . The second patch here was required on my system. It seems, that zope.app.component is a missing dependency for z3c.form. (at least for now). cheers, Gerhard ------------------------------------------------------------------------ Index: src/z3c/form/converter.py =================================================================== --- src/z3c/form/converter.py (revision 101721) +++ src/z3c/form/converter.py (working copy) @@ -359,6 +359,10 @@ #form property required by objecwidget widget.form = self.widget.form zope.interface.alsoProvides(widget, interfaces.IFormAware) + if interfaces.IContextAware.providedBy(self.widget): + # context property may be required by objectwidget + widget.context = self.widget.context + zope.interface.alsoProvides(widget, interface.IContextAware) converter = zope.component.getMultiAdapter((field, widget), interfaces.IDataConverter) @@ -377,6 +381,10 @@ #form property required by objecwidget widget.form = self.widget.form zope.interface.alsoProvides(widget, interfaces.IFormAware) + if interfaces.IContextAware.providedBy(self.widget): + # context property may be required by objectwidget + widget.context = self.widget.context + zope.interface.alsoProvides(widget, interface.IContextAware) converter = zope.component.getMultiAdapter((field, widget), interfaces.IDataConverter) ------------------------------------------------------------------------ Index: setup.py =================================================================== --- setup.py (revision 101721) +++ setup.py (working copy) @@ -84,6 +84,7 @@ 'z3c.coverage', 'z3c.template', 'zc.sourcefactory', + 'zope.app.component', 'zope.app.container', 'zope.app.i18n', 'zope.app.pagetemplate',