Question

How to convert mixed-type list items to an IEnumerable string using LINQ in VB.NET

Answer 1

Imports System
Imports System.Linq
Imports System.Collections.Generic

Module Program

    Sub Main()

        ' Create a list that can contain mixed types
        Dim obj As New List(Of Object)()

        ' Add items of different types
        obj.Add("US")
        obj.Add("UK")
        obj.Add(17)
        obj.Add(3.14)

        ' Convert all items to string 
        Dim result As IEnumerable(Of String) = obj.Select(Function(x) x.ToString())

        For Each item In result
            Console.WriteLine(item)
        Next

    End Sub

End Module



' run:
'
' US
' UK
' 17
' 3.14
'

 

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