If A Not Equal to B in SSRS

Question

I understand IIF very well but I am trying to write an expression like the below in SSRS.

    IF A<>B,"D"
    =IIF(A <> B,"C","D") -- this doesn't work for me 

What replaces the sign, "<>" in the expression?

Answer 1

The <> may not work if your values contain NULL so you may have to run a multiple case comparison such as:

IiF(A<>B OR A IsNothing OR B IsNothing, "C", "D")