How to select DataTable columns with string array 'LINQ'

Question

hi I can't choose like (2D Array).

     Dim MyDataTable As New DataTable
        MyDataTable.Columns.Add("A")
        MyDataTable.Columns.Add("B")
        MyDataTable.Columns.Add("C")
        MyDataTable.Rows.Add({"a", "aL2_1", "aL3_1"})
        MyDataTable.Rows.Add({"b", "bL2_1", "bL3_2"})
        MyDataTable.Rows.Add({"a", "aL2_1", "aL3_2"})
        MyDataTable.Rows.Add({"a", "aL2_2", "aL3_1"})
        MyDataTable.Rows.Add({"b", "bL2_1", "bL3_1"})
        MyDataTable.Rows.Add({"c", "cL2_1", "cL3_1"})
        'Is 2D Array
        Dim arrNoProblem = (From row In MyDataTable.AsEnumerable()
                            Select New Object() {row.Item("B"), row.Item("C")}).ToArray()
'______________________________________Problem
        Dim OnlyColumns As String() = {"B", "C"}
         'Is 3D Array
        Dim arrProblem = (From row In MyDataTable.AsEnumerable()
                          Select New Object() {OnlyColumns.Select(Function(h) row.Item(h)).ToArray()}).ToArray()
     ```

Answer 1

Maybe this will work:

Dim arr = (From row In MyDataTable.AsEnumerable()
           Select OnlyColumns.Select(Function(h) row.Item(h)).ToArray).ToArray

Answer 2

Not sure ...

        Dim table As New DataTable

        table.Columns.Add("Col1", GetType(Integer))
        table.Columns.Add("Col2", GetType(String))
        table.Columns.Add("Col3", GetType(String))

        table.Rows.Add(25, "Col1 A", "10")
        table.Rows.Add(50, "Col1 B", "50")
        table.Rows.Add(10, "Col1 C", "51")
        table.Rows.Add(21, "Col1 D", "52")
        table.Rows.Add(100, "Col1 E", "11")
        table.Rows.Add(100, "Col1 F", "12")
        table.Rows.Add(100, "Col1 G", "11")
        table.Rows.Add(100, "Col1 H", "12")

        Dim ie As IEnumerable

        ie = From rw In table.Rows
              Select New List(Of Object) From {DirectCast(rw, DataRow).Item("Col1"),
                                               DirectCast(rw, DataRow).Item("Col3")}