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MS Access How can I check for a text value in a null value field?

Posted on 2013-01-29
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Last Modified: 2013-01-29
This code works fine until I added the piece in bold:

Private Sub Project_Name_AfterUpdate()


      If "" & Me.ProjectName <> "" And IsDate(Me.AendDate) = False And Me.Status <> "Cancelled" Then
        Me.Status = "Working"
    End If
End Sub

This statement doesn't work due to a null value in the Status Field.
(Only works with existing text in the Status field)

How can I check for text "Cancelled" in a null value field?
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Question by:DJPr0
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9 Comments
 
LVL 66

Assisted Solution

by:Jim Horn
Jim Horn earned 200 total points
ID: 38831296
>How can I check for text "Cancelled" in a null value field?
Couple of ways..
IsNull(Me.Status) will return True if Null, False if not null
Nz(Me.Status, "foo") will return the Me.Status if not null, and whatever value you want to slam in here (aka foo) if null
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LVL 51

Accepted Solution

by:
Gustav Brock earned 300 total points
ID: 38831420
Use Nz:

  If Nz(Me.ProjectName) <> "" And Not IsDate(Me.AendDate) And Nz(Me.Status) <> "Cancelled"  Then
   Me.Status = "Working"
  End If

/gustav
0
 

Author Comment

by:DJPr0
ID: 38831464
Still not working:
(Working will not populate the status field on after update)

Private Sub Project_Name_AfterUpdate()
If "" & Me.ProjectName <> "" And IsDate(Me.AendDate) = False And Nz(Me.Status, "Cancelled") = False Then
        Me.Status = "Working"
End If
End Sub

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Author Comment

by:DJPr0
ID: 38831510
/gustav

This isn't working: (only works if Status has text)

 If Nz(Me.ProjectName) <> "" And Not IsDate(Me.AendDate) And Nz(Me.Status) <> "Cancelled"  Then
   Me.Status = "Working"
  End If
0
 
LVL 61

Expert Comment

by:mbizup
ID: 38831564
(No points, please)

Take another look at Jim's post.

You don't have the syntax quite right.  It should be:

 If Nz(Me.ProjectName) <> "" And Not IsDate(Me.AendDate) And Nz(Me.Status,"") <> "Cancelled"  Then
   Me.Status = "Working"
  End If

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0
 
LVL 51

Expert Comment

by:Gustav Brock
ID: 38831626
Try with:

  If Nz(Me.ProjectName) <> "" And Not IsDate(Me.AendDate) And Nz(Me.Status, "Empty") <> "Cancelled"  Then
   Me.Status = "Working"
  End If

/gustav
0
 

Author Closing Comment

by:DJPr0
ID: 38831666
Thanks to everyone!

/gustav did work (when I put the code in the right form!)
0
 
LVL 51

Expert Comment

by:Gustav Brock
ID: 38831686
You are welcome!

/gustav
0
 
LVL 66

Expert Comment

by:Jim Horn
ID: 38831776
Thanks for the split.  Good luck with your project.  -Jim
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