SSRS Calculated field with IIF expression gives #error when the condition is false

Question

Hello I'm fairly new to SSRS and I'm working on making my first report for work. It has been going fine until today when I needed make a textbox in Tablix handle both a numbers calculation and text. A column in my SQL table that was previously a purely number field now has n|a for certain rows. So I wrote the following expression to handle those n|as. When the proceeds field is numeric the formula works, but when it's an n|a it shows up on the report as #error and I can't figure out why. I've removed all formatting from the textbox to the same result.

=IIF(Fields!Proceeds.Value<>"n|a",Fields!Proceeds.Value / Fields!DealBalance.Value,"n|a")

Answer 1

As TnTinMn explained, IIF always evaluates both the true and false part of the expression.

The simple fix is to do something like EDIT Revised due to update from OP

=IIF(Fields!Proceeds.Value<>"n|a",VAL(REPLACE(REPLACE(Fields!Proceeds.Value,",",""),"$","")) / Fields!DealBalance.Value,"n|a")

This simply strips out the $ symbol and commas and then converts the text to a number using VAL(), if the text is not a number it will return zero which will not cause an error as the false part of your expression would give 0/DealBalance.