[Solved] Show folders/files in TreeView ( VB.NET 2008 )

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'Don't forget to import this
Imports System.IO

'Declare these
Private Enum ItemType
    Drive
    Folder
    File
End Enum

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    For Each drive As DriveInfo In DriveInfo.GetDrives
        Dim node As TreeNode = _
            file_view_tree.Nodes.Add(drive.Name)
        node.Tag = ItemType.Drive
        node.Nodes.Add("FILLER")
    Next
End Sub

Private Sub file_view_tree_BeforeExpand(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewCancelEventArgs) Handles file_view_tree.BeforeExpand
    Dim currentNode As TreeNode = e.Node
    currentNode.Nodes.Clear()
    Try
        'Now go get all the files and folders
        Dim fullPathString As String = currentNode.FullPath

        'Handle each folder
        For Each folderString As String In _
            Directory.GetDirectories(fullPathString)
            Dim newNode As TreeNode = _
            currentNode.Nodes.Add(Path.GetFileName(folderString))
            Dim x As String = Path.GetFileName("")
            newNode.Tag = ItemType.Folder
            newNode.Nodes.Add("FILLER")
        Next

        'Handle each file
        For Each fileString As String In _
            Directory.GetFiles(fullPathString)
            'Get just the file name portion (without the path) :
            Dim newNode As TreeNode = _
            currentNode.Nodes.Add(Path.GetFileName(fileString))
            newNode.Tag = ItemType.File
        Next
    Catch ex As Exception

    End Try
End Sub

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solved Show folders/files in TreeView ( VB.NET 2008 )