Add SubItems in TreeView

Question

I'm sure this sounds like a n00b question, but how do I add sub items programmically while populating a TreeView list in VB.NET 3.5? I have the following code, but haven't been able to figure out how to add the sub items for each of the folders/files I'm populating the TreeView with:

Private Sub AddToList(ByVal targetDirectory As String, ByVal boolFiles As Boolean, Optional ByVal recur As Boolean = False)

    Dim shortName As String

    TreeView1.Items.Add(targetDirectory)

    //Add subitems under here

    If Directory.GetDirectories(targetDirectory).Length > 0 Then
        Dim subdirectoryEntries As String() = Directory.GetDirectories(targetDirectory)
        Dim subdirectory As String

        For Each subdirectory In subdirectoryEntries
            shortName = subdirectory.Remove(0, subdirectory.LastIndexOf("\") + 1)
            TreeView1.Items.Add(shortName)
            AddToList(subdirectory, False, True)

            If boolFiles = True Then AddToList(subdirectory, boolFiles)
        Next
    End If
End Sub

To clarify, I want my TreeView to look similar to the Windows Explorer look. I appreciate any and all help!

Thanks in advance! JFV

Answer 1

You need to use TreeNode objects, and add sub items to the parent TreeNode, instead of adding everything to the TreeView directly. Check out this example .

Answer 2

Which TreeView is this? In winforms, you simply catch the returned TreeNode from Add, and add more items to the Nodes property:

TreeNode parent = treeView.Nodes.Add("parent");
parent.Nodes.Add("child");