Solved

easy one (I hope): detecting null date value in combo box

Posted on 2012-04-02
5
269 Views
Last Modified: 2012-04-03
Dear experts:
I have a combo box in a continuous form; one of its columns (index=7) contains an approval date, which may either be populated or null.
I am using conditional formatting on another field in the same record.
It is choking on the expression I am using to detect if that date is there or not.
I am using this:
 Nz([Form]![cbopart_id].[column](7),0)<>0
Any ideas?
Thanks!
0
Comment
Question by:terpsichore
5 Comments
 
LVL 74

Accepted Solution

by:
Jeffrey Coachman earned 500 total points
ID: 37799099
Try this:

Expression Is:  [cbopart_id].column(7)=""
0
 
LVL 74

Expert Comment

by:Jeffrey Coachman
ID: 37799109
works fine for me here...

I am sure you can modify this to work in your db...
Database59.mdb
0
 
LVL 29

Expert Comment

by:IrogSinta
ID: 37799153
Hmmm, I'm not sure why that wouldn't work for you.  Unless you're really referring to column 6 since the first column starts at 0.
0
 
LVL 49

Expert Comment

by:Gustav Brock
ID: 37799695
Nz([Form]![cbopart_id].[column](7),0)<>0

does not work because values from comboboxes always are strings. Thus, Nz makes no sense here, and also the value would never be 0 but "0".

Jeffrey provided the solution. Alternatively, if you like:

Len([Form]![cbopart_id].[column](7))=0

/gustav
0
 

Author Closing Comment

by:terpsichore
ID: 37803701
thanks - you guys/gals were extremely helpful.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Today's users almost expect this to happen in all search boxes. After all, if their favourite search engine juggles with tens of thousand keywords while they type, and suggests matching phrases on the fly, why shouldn't they expect the same from you…
Introduction The Visual Basic for Applications (VBA) language is at the heart of every application that you write. It is your key to taking Access beyond the world of wizards into a world where anything is possible. This article introduces you to…
In Microsoft Access, when working with VBA, learn some techniques for writing readable and easily maintained code.
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now