VB.net - WPF - Help with treeview

[Lasse Frederiksen]

I am new to VB.net and WPF. and i need some help. When i select a item in the combobox. then i will have that Directory i have selected in the combobox. add to the listbox or treeview (as a treeview with folders/subfolders/... and files) edit: My problem is i apparently can't use .Nodes in my VB.net code. And my events (afterselected) is useless.. I can use it in VB.net(winforms) but not as WPF (Class Library)

Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Input

Public Class VerticalPaneExample
Dim root = "c:\temp\"
Dim matroot As String = ""
Dim newtoolsti As String = ""
Dim enodetext As String = ""

Private Sub VerticalPaneExample\_Loaded(sender As Object, e As RoutedEventArgs) Handles Me.Loaded
    Dim folders() As String = IO.Directory.GetDirectories(root)
    For Each folder As String In folders
        Dim clean As String
        clean = folder.Replace(root, "")
        Me.matpicker.Items.Add(clean)
    Next
End Sub

Private Sub matpicker\_AfterSelect(sender As Object, e As RoutedEventArgs) Handles matpicker.AfterSelect
    Me.matpicker.SelectedItem = matroot

    For Each direct As String In System.IO.Directory.GetDirectories(matroot)
        Dim dir As String = System.IO.Path.GetFileNameWithoutExtension(direct)
        Dim newNode = viewptffiles.Nodes.Add(dir, dir)
        RecurseChildFolders(direct, newNode)
        Try
            For Each file As String In System.IO.Directory.GetFiles(direct, "\*.\*")
                newNode.Nodes.Add(System.IO.Path.GetFileName(file))
            Next
        Catch ex As Exception
        End Try
    Next

Private Sub RecurseChildFolders(directory As String, parent As TreeNode)
    For Each direct As String In System.IO.Directory.GetDirectories(directory)
        Dim dir As String = System.IO.Path.GetFileNameWithoutExtension(direct)
        Dim child = parent.Nodes.Add(dir, dir)
        RecurseChildFolders(direct, child)
        Try
            For Each file As String In System.IO.Directory.GetFiles(direct, "\*.\*")
                child.Nodes.Add(System.IO.Path.GetFileName(file))
            Next
        Catch ex As Exception
        End Try
    Next
End Sub

End Class

My xaml file look like this:

[Richard Deeming]

You've told us what you want to do, and shown your code, but you forgot to tell us what the problem is or where you're stuck.

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"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

[Lasse Frederiksen]

Sorry.. My problem is i apparently can't use .Nodes in my VB.net code. And my events (afterselected) is useless.. I can use it in VB.net(winforms) but not as WPF (Class Library)

[Richard Deeming]

Your WPF code is using a ListBox, not a tree-view control. TreeView, data binding and multiple templates - The complete WPF tutorial[^] TreeView Overview - WPF .NET Framework | Microsoft Docs[^] How to: Create Simple or Complex TreeViews - WPF .NET Framework | Microsoft Docs[^]

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"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer