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How can I expand or collapse the nodes in a TreeViewAdv programmatically?


TreeViewAdv has methods like ExpandAll and CollapseAll to expand and collapse all the nodes respectively. But to expand a particular node for a single level, you could use the Expand method in the TreeNodeAdv class. To collapse a node for a single level, set its Expanded property to false.


//Expands All Cloapsed node


//Expands the Node upto Single Level


//Collapses All Expanded Nodes


//Collapses a Node for Single Level


//Collapse the Node with all its Children nodes by Recursive method

private void CollapseNode(TreeNodeAdv node)


foreach(TreeNodeAdv tna in node.Nodes)




node.Expanded = false;



'Expands All Cloapsed node


'Expands the Node upto Single Level


'Collapses All Expanded Nodes


'Collapses a Node for Single Level


'Collapse the Node with all its Children nodes by Recursive method

Private Sub CollapseNode(ByVal node As TreeNodeAdv)

For Each tna As TreeNodeAdv In node.Nodes


Next tna

node.Expanded = False

End Sub

Article ID: Published Date: Last Revised Date: Platform: Control:
1275 04/30/2011 07/10/2014 WinForms TreeViewAdv
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