How do I get the Kind of Elements in an Array using Roslyn

Question

I am trying to get the Type that is iterated through using Roslyn. I can get the fact that the object is defined as String() using

  Dim ElementTypeInfo As TypeInfo = SemanticModel.GetTypeInfo(ForEachStatement.Expression)
  Dim expressionType As ITypeSymbol = ElementTypeInfo.Type

and in the Visual Studio debugger I can look at expressionType.ElementType and find out it is a String. But when I try to access ElementType in code I get an error saying the ElementType is not a member of ITypeSymbol.

`Dim expressionType As ITypeSymbol` is where you're going wrong? If so, then don't declare it as such. — Ally, Mar 25 '17 at 08:43

score 1 · Answer 1 · answered Mar 25 '17 at 22:06

If you know that expressionType is going to be an array, you can cast it to IArrayTypeSymbol. After that, you will be able to access its ElementType:

Dim expressionType = DirectCast(elementTypeInfo.Type, IArrayTypeSymbol)
Dim elementType As ITypeSymbol = expressionType.ElementType

How do I get the Kind of Elements in an Array using Roslyn

1 Answers1