Running Sum Property Missing

[Cheryl R]

I have a form with a subform. I am trying to add a running sum to the subform list. Simple, right?
I added a text box to the subform, made the Control Source =1.


(I am making the changes via the actual subform rather than going through the main form.)
Theoretically, there is supposed to be an item on the Properties Data Tab that says RunningSum.
However, this is not an option with mine (am running Access 2010).
What am I doing wrong?

[Cheryl R]

DUH- Sorry, silly question - That function is only available in reports (time to get my head out of my access- har har)
Though I'm sure there is a way to do this on the form...

[ssanfu]

Here are two articles on creating running sums on forms. I googled "msaccess running sum in form"

http://www.tek-tips.com/faqs.cfm?fid=5248
http://support.microsoft.com/kb/210338

[June7]

And another you might find interesting http://allenbrowne.com/subquery-01.html#YTD