June 7, 200718 yr Newbies I am working in a table which contains a portal linked to an "Invoice items" table; the portal displays invoice amounts, and also a radio button with two choices: "taxable" or "nontaxable/labor" (The radio button data actually comes from another table, "Billing_Codes.") I would like to insert two fields: one is a summation of all "taxable" invoices and the second is a summation of all "nontaxable/labor" invoices, as seen in the portal display. The following calculation I have set up is not operational: Sum ( If (Billing_Codes::Taxable? = "Taxable" ; Invoice_Items::Amount ; 0) ) Any suggestions for calculating a sum of only certain items, depending on which radio button is selected, would be greatly appreciated! Thank you.
June 7, 200718 yr You could do something like this: http://www.fmforums.com/forum/showpost.php?post/253369/ --sd
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