If Null and Dcount

In the below, if Dcount is >0  then the return will either be "Yes" or "-".  I want to add a criteria if Dcount is Null then return " " (a blank) to show me that there are no records.  I think I need to add another criteria?  Possibly Switch?  

ExpctDepart: IIf(DCount("*","qryDepartures_3","ProjectID= " & [Projects.ID])>0,"Yes","-")

qryDepartures_3:
SELECT tblDepartures.ProjectID, tblDepartures.DraftedDocYN, tblDepartures.ConfirmedDepartureYN
FROM tblDepartures
WHERE (((tblDepartures.ConfirmedDepartureYN) Is Null Or (tblDepartures.ConfirmedDepartureYN)=True))
GROUP BY tblDepartures.ProjectID, tblDepartures.DraftedDocYN, tblDepartures.ConfirmedDepartureYN
HAVING (((tblDepartures.DraftedDocYN)="Yes" Or (tblDepartures.DraftedDocYN) Is Null));


thank you
pdvsaProject financeAsked:
Who is Participating?
 
Dale FyeConnect With a Mentor Commented:
DCOUNT will never be NULL.  It will always return a numeric value.
0
 
pdvsaProject financeAuthor Commented:
Hi fyed, maybe i could use =0 somehow?
0
 
Gustav BrockCIOCommented:
You probably think of something like this:

ExpctDepart: Format(DSum("Abs([DraftedDocYN])","qryDepartures_3","ProjectID= " & [Projects.ID]), "\Y\e\s;;\-;")

/gustav
0
Cloud Class® Course: Microsoft Exchange Server

The MCTS: Microsoft Exchange Server 2010 certification validates your skills in supporting the maintenance and administration of the Exchange servers in an enterprise environment. Learn everything you need to know with this course.

 
pdvsaProject financeAuthor Commented:
Cactus.... Very funky looking.... Interesting.  I will test when back at computer.  Thank you
0
 
pdvsaProject financeAuthor Commented:
Cactus,

I get a "data type mismatch in criteria or expression" error when I run from qry design builder.  When I paste it, it changes it a bit to the below.  

ExpctDepart: Format(DSum("Abs([DraftedDocYN])","qryDepartures_3","ProjectID= " & [Projects.ID]),"""Yes"";;-")
                      ^^^^^^^^

Not sure if DraftedDocYN would be the problem.  It is not a true YN field...I have since then modified it to a combo value list with values of "Yes";"No";"previously issued";"Don’t Need it"

let me know what is next...
0
 
Gustav BrockConnect With a Mentor CIOCommented:
If DraftedDocYN is not a Boolean field (WHO could know), you will, of course, have to adjust.

Try starting with a Boolean field and:

ExpctDepart: DSum("Abs([DraftedDocYN])","qryDepartures_3","ProjectID= " & [Projects.ID] & "")

The apply the format.

/gustav
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.