Why IIF is evaluating the two sides ? .NET

Question

I'm trying to use the IIF in a simple mode:

 Dim MyList As List(Of Double) = New List(Of Double)
 Dim ret As Double

 ret = IIf(MyList.Count > 0, MyList.Max(), 0)

There is no elements in MyList but a System.InvalidOperationException is thrown, "Sequence has no elements". Why IIF is evaluating the two sides ?

Thanks!

[read this post.](http://stackoverflow.com/questions/576431/is-there-a-conditional-ternary-operator-in-vb-net) — Zohar Peled, Apr 25 '16 at 11:33

score 1 · Accepted Answer · answered Apr 25 '16 at 11:32

1

Because that is the old VB6 function, use the If operator which does short-circuit evaluation:

ret = If(MyList.Count > 0, MyList.Max(), 0)

answered Apr 25 '16 at 11:32

Tim Schmelter

1 Answers1