Unbound Combo Refresh

G

golfinray

I have an unbound combo on a form that is summing a value from a subform.
(=sum([project payments]) I need it to update as I change from one record to
the next in the main form. The mainform and subform are linked by project #.
Thanks!!!
 
B

BruceM via AccessMonster.com

Why a combo box? I don't see where a drop-down list fits into this. You
could place the appropriate expression In a text box Control Source. In the
subform footer you could have as the Control Source for an unbound text box
(txtSum):

=sum([project payments])

This assumes [project payments] is a field in the subform Record Source. You
should be able to hide the text box and reference it in a main form text box
Control Source:

=Forms![FormName]![SubformControlName].Form!txtSum

You could also perform the sum directly in a main form text box:

=Sum(Forms![FormName]![SubformControlName].Form![project payments])

There should be no need to requery or otherwise force an update. It should
produce the result for the current record (including related subform records).


I have never tried summing in a combo box , but I expect it could work the
same way.
I have an unbound combo on a form that is summing a value from a subform.
(=sum([project payments]) I need it to update as I change from one record to
the next in the main form. The mainform and subform are linked by project #.
Thanks!!!
Click to expand...
 
T

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