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How to select all the leaf nodes of the parent node?

 

We can select all the leaf nodes of the parent node by just selecting the parent node by handling the AfterSelect Event handler.

C#

private void treeViewAdv1_AfterSelect(object sender, System.EventArgs e)

{

TreeNodeAdvCollection tn = new TreeNodeAdvCollection();

foreach (TreeNodeAdv n in this.treeViewAdv1.SelectedNodes)

{

this.AddChildren(tn, n);

}

foreach (TreeNodeAdv n in tn)

{

this.treeViewAdv1.SelectedNodes.Add(n);

}

}

private void AddChildren(TreeNodeAdvCollection tn, TreeNodeAdv n)

{

foreach (TreeNodeAdv child in n.Nodes)

{

tn.Add(child);

this.AddChildren(tn, child);

}

}

VB

Private Sub treeViewAdv1_AfterSelect(ByVal sender As Object, ByVal e As System.EventArgs)

Dim tn As TreeNodeAdvCollection = New TreeNodeAdvCollection()

For Each n As TreeNodeAdv In Me.treeViewAdv1.SelectedNodes

Me.AddChildren(tn, n)

Next n

For Each n As TreeNodeAdv In tn

Me.treeViewAdv1.SelectedNodes.Add(n)

Next n

End Sub

 Private Sub AddChildren(ByVal tn As TreeNodeAdvCollection, ByVal n As TreeNodeAdv)

For Each child As TreeNodeAdv In n.Nodes

tn.Add(child)

Me.AddChildren(tn, child)

Next child

End Sub

Article ID: Published Date: Last Revised Date: Platform: Control:
1349 04/30/2011 07/10/2014 Windows Forms TreeViewAdv
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