ReportViewer Division by zero

Question

I have some formulas in my reports, and to prevent divsion by zero I do like this in the expression field:

=IIF(Fields!F1.Value <> 0, Fields!F2.Value/Fields!F1.Va

Answer 1

IIF() is just a function, and like with any function all the arguments are evaluated before the function is called, including Fields!F2.Value/Fields!F1.Value. In other words, it will attempt to divide by zero in spite of the Fields!F1.Value <> 0 condition.