Data type mismatch in criteria expression on Access query


I get "Data type mismatch in criteria expression" error message when I run below function.

Date Completed: CDate([QryReportDetail].[Date Completed]).

I can't find anything wrong in the column(Actual there the values are null for this column, still I need to apply this function in case it get values in the future). Also, this function worked fine with other columns with character dates.

Please have a look.

Asatoma SadgamayaAnalystAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Gustav BrockCIOCommented:
If it is a Date field, no CDate is needed:

Date Completed: [QryReportDetail].[Date Completed]

Open in new window

And it can be Null as well.
Asatoma SadgamayaAnalystAuthor Commented:
TngDueDate: IIf(Not IsDate([TngDue]),Null,CDate([TngDue]))


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Access

From novice to tech pro — start learning today.