OnClientNodeExpanded

The OnClientNodeExpanded client-side event occurs after a parent node expands to display child nodes.

Calling the client-side expand() or set_expanded(true) method does not fire OnClientNodeExpanding and OnClientNodeExpanded client-side events. More information is available here.

The event handler receives parameters:

1. The TreeView instance that fired the event.

2. Event arguments with functions:

• get_node() retrieves a reference to the clicked on node.

• get_domEvent() retrieves a DOM event object of the node expand.

The example below displays the text for the parent node and a count of child nodes.

ASPNET

<telerik:RadTreeView RenderMode="Lightweight" ID="RadTreeView1" runat="server" 
                     OnClientNodeExpanded="ClientNodeExpanded">
</telerik:RadTreeView>

JavaScript

function ClientNodeExpanded(sender, eventArgs) {
	var node = eventArgs.get_node();
	alert("Parent node " +
			node.get_text() +
			" is expanded to show " +
			node.get_nodes().get_count()
			+ " child nodes");
}

See Also

• OnClientNodeExpanding

• RadTreeNode

• Expanding Nodes