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Add SubItems to TreeView

I'm sure this sounds like a n00b question, but how can I add helper items programmatically when populating a TreeView list in VB.NET 3.5? I have the following code, but I was unable to figure out how to add sub-items for each of the folders / files that I populate 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 the same as Windows Explorer. I appreciate any help!

Thanks in advance! JFV

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2 answers


You need to use TreeNode objects and add children to the parent TreeNode, not add everything to the TreeView directly. Check out this example .



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



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