Thank you, Tom. You are right! I shouldn't assign choices to a ModelMultipleChoiceField. That's what caused the problem. But instead of constructing a custom ModelMultipleChoiceField subclass, I abandoned "Model Form" and simply did the following, which worked!
class myForm(forms.Form): Question = forms.ChoiceField(choices=[], widget=forms.RadioSelect()) def __init__(self, request, *args, **kwargs): super(myForm, self).__init__(*args, **kwargs) self.fields['Question'].choices = Model.objects.filter(**request.session['filter_dict']).values_list('city', 'city').distinct() And in views.py, def myAnswer(request): Answer = myForm(request, request.GET or None) if Answer.is_valid(): ........................................................... ........................................................... Once again, thank you for pointing out such important concept. It helped a lot! cheers, voss -- You received this message because you are subscribed to the Google Groups "Django users" group. To view this discussion on the web visit https://groups.google.com/d/msg/django-users/-/CVaiGVkam1QJ. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.