How to programmatically expand the root nodes in WinForms TreeViewAdv?

You can expand the Root nodes of the WinForms TreeViewAdv by using the Expand method of the node.

TreeNodeAdv root = this.treeViewAdv1.Root;

foreach (TreeNodeAdv node in root.Nodes)
{
    // Call the Expand method on each root node.
    node.Expand();
}

root.Expand();

Output

Take a moment to peruse the WinForms TreeView - Getting Started documentation, where you can find about treeview with code examples.

View sample in GitHub

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How to programmatically expand the root nodes in WinForms TreeViewAdv?

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