Question

I am having a weird problem. IIf is messing up when I am working with an array. Apparently it is checking my else statement even though it isn’t activated. Here is some code that demonstrates the issue:

'works
 Dim test As String = "bleh"
 If values.Length < 6 Then
   test = "200"
 Else
   test = values(5)
 End If

 'throws indexoutofrange exception
 Dim itemLimit As String = IIf(values.Length < 6, "200", values(5))

Answer 1

The Iif operator doesn’t implement short circuiting and will evaluate both the true and false case. If you want a short-circuit version then use If.

Dim itemLimit As String = If(values.Length < 6, "200", values(5))