I have a textbox A that uses an expression to return a percentage based on two other textbox values. I need the indicator to look at textbox A and, if > 0, green up arrow, if = 0, yellow side arrow, if <0, red down arrow. It could even take the expression being used to get the percentage in textbox A. I'm having issues with this, as every time i try to reference the % textbox (via ReportItems!A.Value) it gives me an error saying that the value expression for the gauge panel uses an aggregate function on a report item. Aggregate functions can only be used on report items contained in page headers and footers.
Help?
