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ASPxClientTreeViewNode.GetExpanded Method

Returns a value indicating whether the node is expanded.

#Declaration

TypeScript
GetExpanded(): boolean

#Returns

Type Description
boolean

true if the node is expanded; otherwise, false.

#Remarks

The ASPxTreeView allows end-users to expand/collapse nodes. To determine the node’s expansion state, use the GetExpanded method on the client side. In order to expand/collapse a node on the client side, use the ASPxClientTreeViewNode.SetExpanded method.

To learn more, see the Expanding and Collapsing Nodes topic.

#Example

The code below shows how you can handle the client NodeClick event to expand and collapse nodes with a click.

   <dx:aspxtreeview id="ASPxTreeView1" runat="server" datasourceid="XmlDataSource1">
    <ClientSideEvents NodeClick="function(s, e) {
    e.node.SetExpanded(!e.node.GetExpanded());
    }"></ClientSideEvents>
   </dx:aspxtreeview>
See Also