I'm trying to filter a combo box using a three way checkbox in a similar to the way of doing the cascading combo box by using something like this in the combo row source
[Forms]![FormName]![CheckBoxName]
This works when the checkbox is True or False, but not if it's Null. Anyway to show all records in the combobox when the checkbox is Null?
Thanks
[Forms]![FormName]![CheckBoxName]
This works when the checkbox is True or False, but not if it's Null. Anyway to show all records in the combobox when the checkbox is Null?
Thanks