I am trying to pass the value for the second column of a combobox in a subform to another control (on the same subform) which has a control source from the underlying query. I have: me!testcontrol = me![subform].Form![control].Column(1) in the afterupdate event of a control. It work as I would expect it to when I open the subform all by itself. The second control gets the value and it is passed to the query. However, when I run the the form/subform I get an error saying that it can't find the subform.