VB.NET Tables searching getting info

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ListBox

I have a couple questions about this start..

tbLive is a text box with a path in it.
bTest is a button

Does it need MyBase.Load? I had a DataSet but I only need one table so I removed it.

How do I reference the table to get a column to a listbox?

It's all very confusing, I see the .find command but I don't see how you would use it. I think I need to set a primary key...

Should I use a multi-column listbox? All I need to do is have one list where I can program some items to show in another list... the items are folders that can be copied or moved or 'hidden' from the list.

Imports System.IO
Imports System.Data

Private Sub Test_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

  DT = New DataTable("DTA")
  DT.Columns.Add("Folder", GetType(String))
  DT.Columns.Add("Show", GetType(String))

  Dim id As Integer
  For id = 1 To 2
    DT.Rows.Add(New Object() {id, String.Format("abc", id)})
  Next id

  DT.AcceptChanges()

End Sub

Private Sub bTest_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bTest.Click

    Dim di As New DirectoryInfo(tbLive.Text)
    Dim diArr As DirectoryInfo() = di.GetDirectories()
    Dim dri As DirectoryInfo
    For Each dri In diArr
        DT.Rows.Add(New Object() {dri.Name, ""})
    Next (dri)
    Dim i As Integer

    For i = 0 To DT.Rows.Count - 1
        lbLive.Items.Add(DT.Rows(i))  'this needs to specify the column...
    Next

End Sub