I have two columns, in one the Masterdata bad "Prices" of products and in another the "quantity" of them.
Is it posible to get cumulative sum of this in each record?
In first record sum of this two, in secont previus sum plus curent sum, an so on in each record...
Something like this printed in each record of the master band:
[SUM(<Test."Price">*<Test."Quantity">,MasterData1,2))]

Thanks

the sum function is only used for agrregates in footers
other than that set a memos allow expressions prop to true
use a variable to store the the sum of the expression by writing code in oap or oad events of memo or obp of band.
read the user manual on working with variables.