Dear kenaf42 (name?)
You need code in the After Update event of each of the combo boxes to copy the selected value to D. If D starts out with a Null value, then that's what it will have if no value is selected from any of the combo boxes.
Private Sub A_AfterUpdate()
Me.D = Me.A
End Sub
John Viescas, Author
Effective SQL
SQL Queries for Mere Mortals
Microsoft Access 2010 Inside Out
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Building Microsoft Access Applications
(Paris, France)
On Dec 2, 2016, at 7:16 PM, kenaf42@yahoo.com [MS_Access_Professionals] <MS_Access_Professionals@yahoogroups.com> wrote:
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Posted by: John Viescas <johnv@msn.com>
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