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Access 2010: Requiring an entry in a field IF a certain selection is made from another cbobox.

Posted on 2011-09-03
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Last Modified: 2012-05-12
In my db I have a combo box with several choices.  If user selects "Current HS" , then I want to REQUIRE the field [HSGradYr] to be entered.  

I have the following before update code that PARTIALLY works - but stops.

Private Sub StatusReason_BeforeUpdate(Cancel As Integer)
If Me.StatusReason = "Current HS" Then
  If Len(Me.HSGradYr & vbNullString) = 0 Then
    MsgBox "If you use this reason, you must enter a HS Grad Yr"
    Cancel = True
    Me.HSGradYr.SetFocus
  End If
End If
End Sub

When I make that selection in StatusReason, two things happen.  First I get the proper message box I asked for and then this:

"Run-time error '2108'
You must save the field before you execute the GoToControl action, the GoToControl method, or the SetFocus method."

Clearly I've left something out of my code -

HELP?!?!?!?!  

thanks everyone!
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Question by:mbmartin0409
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9 Comments
 
LVL 75
ID: 36478680
You cannot set Focus to a control within the Before Update of a control


Private Sub StatusReason_BeforeUpdate(Cancel As Integer)
If Me.StatusReason = "Current HS" Then
  If Len(Me.HSGradYr & vbNullString) = 0 Then
    MsgBox "If you use this reason, you must enter a HS Grad Yr"
    Cancel = True
      ' Me.HSGradYr.SetFocus  ' Comment this out
  End If
End If
End Sub

mx
0
 

Author Comment

by:mbmartin0409
ID: 36478760
Thanks for that ---
but then --- how DO i get the user's focus on the field that needs to be completed?

0
 
LVL 75
ID: 36478765
Well ... you can move this code to the Form Before Update event instead, because there you *can* set Focus to another control.  That's just how it works ...

mx
0
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LVL 75

Accepted Solution

by:
DatabaseMX (Joe Anderson - Microsoft MVP, Access and Data Platform) earned 2000 total points
ID: 36478767

Private Sub Form_BeforeUpdate(Cancel As Integer)
If Me.StatusReason = "Current HS" Then
  If Len(Me.HSGradYr & vbNullString) = 0 Then
    MsgBox "If you use this reason, you must enter a HS Grad Yr"
    Cancel = True
      Me.HSGradYr.SetFocus  ' This should work now .
  End If
End If
End Sub
0
 

Author Comment

by:mbmartin0409
ID: 36478775
also -  Since I have commented that line out,  The run-time error is gone, of course - BUT when I click "ok" on the message box to go enter the required year in the field the same requirement message keeps popping up.  as soon as I leave the field with the beforeupdate code the message pops

any ideas?
0
 

Author Comment

by:mbmartin0409
ID: 36478788
Excellent - It seems to work fine putting this code in the form before update event.  I'll keep trying to screw it up but it seems to be just perfect!
0
 
LVL 75
ID: 36478800
You should find that the Form BU is the best place for  validation over all.  Other than maybe for example someone is entering a Date in a text box, and you want to be sure it's a valid date ... or whatever.

mx
0
 

Author Comment

by:mbmartin0409
ID: 36478852
thanks for the help and enjoy the points! :-)
0
 
LVL 75
ID: 36478891
You are welcome ... and thanks, you put me on the board for this Month, lol.
0

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