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In VB9, the equivalent of the C# ternary
operator is the new If operator.
Prior to VB9, the equivalent of the C# ternary
operator is the If/Else block. Although the VB IIf function can be used in a
similar way to the conditional ternary operator (?)
of C#, it is not
equivalent. VB's IIf function needs to evaluate all
arguments since it is a method (method calls always evaluate all
arguments), but the ternary operator is able to bypass some
evaluations (using short-circuit logic in a similar way to the
logical operators && and ||).
For example, the following C# code:
Target = Condition ? ResultOne : ResultTwo;
Has the following VB equivalent, prior to VB9:
If Condition Then
Target = ResultOne
Else
Target = ResultTwo
End If
The following VB code is not functionally equivalent since both
ResultOne and ResultTwo will be evaluated:
Target = IIf(Condition, ResultOne, ResultTwo)
If you need to convert from C# to VB.NET and you are depending on the results being reliable and accurate,
then you will want to have
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