VB.NET ArrayList to List(Of T) typed copy/conversion

Question

I have a 3rd party method that returns an old-style ArrayList, and I want to convert it into a typed ArrayList(Of MyType).

Dim udc As ArrayList = ThirdPartyClass.GetValues()
Dim udcT AS List(Of MyType) = ??

I have made a simple loop, but there must be a better way:

Dim udcT As New List(Of MyType)
While udc.GetEnumerator.MoveNext
    Dim e As MyType = DirectCast(udc.GetEnumerator.Current, MyType)
    udcT.Add(e)
End While

Answer 1

Dim StronglyTypedList = OriginalArrayList.Cast(Of MyType)().ToList()
' requires `Imports System.Linq`

Answer 2

Duplicate. Have a look at this SO-Thread: http://stackoverflow.com/questions/786268/in-net-how-do-you-convert-an-arraylist-to-a-strongly-typed-generic-list-without

In VB.Net with Framework < 3.5:

Dim arrayOfMyType() As MyType = DirectCast(al.ToArray(GetType(MyType)), MyType())
Dim strongTypeList As New List(Of MyType)(arrayOfMyType)

Answer 3

What about this?

Public Class Utility

    Public Shared Function ToTypedList(Of C As {ICollection(Of T), New}, T)(ByVal list As ArrayList) As C

        Dim typedList As New C
        For Each element As T In list
            typedList.Add(element)
        Next

        Return typedList
    End Function

End Class

If would work for any Collection object.