how to recursively view all child nodes in a treeview

[grambowk]

Hi,

I'm trying to recursively go through all of the child nodes in a tree view upon clicking a button but I'm stuck. Currently, the code below only works for the top nodes in my treeview but I want it to go through each of these nodes' children, and their children and so on.


Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim child As TreeNode
Dim fullpath As String


For Each child In TreeView1.Nodes
fullpath = child.FullPath
Next

End Sub

If anyone can suggest a solution, or where I'm going wrong I'd be grateful.

Thanks,

Karl

[Athley]

Maybe there is an easier way but this code displays a Messagebox with the full path for each node in a treeview. I had a TreView1 with a couple of nodes and a Button1 control:

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    Dim node As TreeNode
    For Each node In TreeView1.Nodes
        MsgBox(node.FullPath)
        GoThroughNodes(node)
    Next

End Sub

Private Sub GoThroughNodes(ByVal node As TreeNode)

    Dim node2 As TreeNode
    For Each node2 In node.Nodes
        If node2.GetNodeCount(False) = 0 Then
            MsgBox(node2.FullPath)
        Else
            MsgBox(node2.FullPath)
            GoThroughNodes(node2)
        End If
    Next

End Sub

I recursively call the GoThroughNodes procedure to go into each nodes children.

/Leyan

[grambowk]

Thanks again Leyan for your help.

That works perfectly!

Karl