Expression help in a form

K

Kevin

I have a subform with a nested subform (displayed as a subdatasheet). The
nested subform recordsource is a query called "BidLineItem". In that query
is a calculated field called "LineTotalCost". I would like the sum of
"LineTotalCost" to be displayed with each appropriate record of the first
subform. The unique fields in the first subform that I need to group by are
"ProjectName", "BidNumber", "ItemNumber".

Is that enough information?? I don't have alot of experience with
expressions. I'm stumped and would really appreciate some help! Thank you!
 

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