troubleshooting Question

Lookup a field to see whether or not it is null or has a value

Avatar of Ryan Bass
Ryan Bass asked on
DatabasesMicrosoft AccessVisual Basic Classic
9 Comments1 Solution114 ViewsLast Modified:
Hi all.  

I currently have the following line of code to see if number entered is a valid one in my MasterCellDevices table:

            If DCount("connection", "MasterCellDevices", "[connection]='" & Me.txt_InvConnectionPhone & "'") > 0 Then

If it is a valid number I want to check to see if there is anything in the MasterCellDevices.ID field.  If there is, I want a msgbox to pop up saying that it is already assigned to a different location.  If it is null or empty I want it to update the field with the current ID.

I am struggling on how to figure out whether or not that field is empty or not.

Sorry if I didn't explain it enough, but I am new to coding and looking for help.

Thank you for your time and help.
ASKER CERTIFIED SOLUTION
Join our community to see this answer!
Unlock 1 Answer and 9 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 9 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros