Subform not displaying footer total

Attached document shows how I've defined a simple subform with a total in the footer.  I've inserted the subform into a page, but cannot get the grand total to display.  See attached screenshots.  This should be so simple!
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

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.

DatabaseMX (Joe Anderson - Microsoft Access MVP)Database Architect / Systems AnalystCommented:
If your subform is in Datasheet view (or a query - which will be displayed as a datasheet), then the Header and Footer do not show. For these to show, you need to use a Continuous  Form view.

Jeffrey CoachmanMIS LiasonCommented:
You cannot sum a textbox:   =Sumt(txtTotalCost)
You can, however, sum the "Field":  =Sum(TotalCost)

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
kerikeriAuthor Commented:
Thanks Experts!  re mx's comment, the subform was a Continuous form already.  I just modified the Grand Total field from Sum(txtTotalCost), to Sum(TotalCost) and works perfectly.  Will remember this for future forms.
Jeffrey CoachmanMIS LiasonCommented:
To be sure, I almost missed you mistake too...

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.