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# Subform total on Main form

## Subform total on Main form

(OP)
How can I total up the Sum of a subform on the Main form? The fields that is linked is the PONo. The subform is in continous view.

Thank You
Replies continue below

### RE: Subform total on Main form

Put a textbox on your subform in the footer.
Call it something like Total and put the =Sum([Fieldname]) in it's control source.
Then put a unbound text box on the main form.
Its control source will be the textbox on the subform.
Me![SubformName]!Total
After you have the formula working make the textbox on the subform invisible.

DougP, MCP
dposton@universal1.com

### RE: Subform total on Main form

I do it a fair bit in A2K

The hypothetical situation is: On the sub-form each line has an amount & you want to show the sum of all line amounts on the main form.

1) On your sub-form create a sum control in the sub-form footer, like:

Name:    SubFormTotal
Control Source: = Sum([Amount])
Visible:    False

2) On the main form... create a control to reference the totaling control of the subform... err, that's the one you just created. Sooooooo

Name:    ShowTotalFromSubform
Control Source: =[>>Insert Sub-Form Name<<].Form![SubFormTotal]

As long as you reference the full name of the sub-form's control you can perform any number of calulations on that "Sum()" from the sub-form. & it works for reports too.

i do something like... where i lifted the code

Sub-report:
Name: PAFSubReport

Sub-report's Control:
Name: DocTot
Control Source: =Sum([Amount])

Main report's control: 'shows one month of salary
Control Source: =IIf([PAFLayout]="A",[PAFSubReport].Report![DocTot]/12)

hope this helps

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