Running Total from a calculated value

[Samuel]

All,
Is there a way to do a running total on a control whose control source
is a calculated field?
There is a groupheader0 in this form.

Example
Sam
Payment: 10.00
Payment: 12.00

Total : 22

Juan
Payment: 15.00

Total: 15.00

The control which displays the payment value is a complex calculated
field based off other items on the report.
It is not possible to do the calculations within the limited
capabilites of MS-Access Query. If it was a SQL Server (no chance of
that happening), I could do the calculations within query using T-SQL
if then statements.

Thanks,
Sam

 

[Marshall Barton]

Is there a way to do a running total on a control whose control source
is a calculated field?
There is a groupheader0 in this form.

Example
Sam
Payment: 10.00
Payment: 12.00

Total : 22

Juan
Payment: 15.00

Total: 15.00

The control which displays the payment value is a complex calculated
field based off other items on the report.

Report text boxes have a RunningSum property that will do
that.

Add another text box (named txtRunTotal) to the group footer
section and set its control source to this kind of
expression:
=[the total text box name]
and set its RunningSum property to Over All

Then a report footer text box can display the grand total by
using the expression:
=txtRunTotal

 

[Klatuu]

Certainly Jet is not as powerful as SQL Server, but are you aware you can
execute VBA functions from a Jet query? I have found it a way enhance the
calculation power.