I am not so sure if the answer is no, but definately not so sure about the question either. I am theorizing here, not sure if it is possible.
1) build a class (clsMyCombo)
2) set a private variable
private withEvents mComboControl as combobox
3) In the Set Property
Public Property Set ComboBoxCntrl(theControl As combobox)
Set mComboControl = theControl
mComboControl.afterUpdate = "[Event Procedure]"
End Property
4) Define an event procedure
private sub mComboControl_afterUpdate()
do something
end sub
5) On your form instantiate a clsMyCombo
dim mcComboClass as new clsMyCombo
set mcComboClass.ComboBoxCntrl = me.combocntrlOne
Now here is the theory. Do some procedure at the form level on afterupdate. You then will trap the same event at the clsMyCombo, I think. If possible you have theoretically done 2 seperate event procedures.
Bottom line. I can not think of a reason to do it, besides a mental drill.