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The OnClientItemClosing client-side event occurs when the menu item is about to contract, hiding its child items.

The event handler receives two parameters:

  1. The instance of the menu firing the event.

  2. An eventArgs parameter containing the following methods:

  • get_item returns a reference to the RadMenuItem that is about to close.

  • set_cancel lets you prevent the menu item from closing.

  • get_cancel returns a boolean value indicating whether the menu item will close after the event handler exits.

  • get_domEvent returns a reference to the DOM event that caused the closing.

You can use this event to control when menu items can contract, or reset the child items to a known state as the menu closes:

<script type="text/javascript">
    function ItemClosing(menu, args) {
        var status = $get("hdCurrentStatus");
        var item = args.get_item();
        if (status.value == "")

<telerik:RadMenu RenderMode="Lightweight" ID="RadMenu1" runat="server" Flow="Horizontal" OnClientItemClosing="ItemClosing">
<input type="hidden" id="hdCurrentStatus" />

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