open

Fires before a sub menu gets opened. You can cancel this event to prevent opening the sub menu.

Event Data

e.item HTMLElement

The opened item

Example

<ul id="menu">
    <li>Item 1
        <ul>
            <li>Sub Item 1</li>
            <li>Sub Item 2</li>
            <li>Sub Item 3</li>
        </ul>
    </li>
    <li>Item 2
        <ul>
            <li>Sub Item 1</li>
            <li>Sub Item 2</li>
            <li>Sub Item 3</li>
        </ul>
    </li>
</ul>
<script>
     $("#menu").kendoMenu({
         open: function(e) {
             // handle event
         }
     });
</script>

To set after initialization

<ul id="menu">
    <li>Item 1
        <ul>
            <li>Sub Item 1</li>
            <li>Sub Item 2</li>
            <li>Sub Item 3</li>
        </ul>
    </li>
    <li>Item 2
        <ul>
            <li>Sub Item 1</li>
            <li>Sub Item 2</li>
            <li>Sub Item 3</li>
        </ul>
    </li>
</ul>
<script>
    $("#menu").kendoMenu();
    // get a reference to the menu widget
    var menu = $("#menu").data("kendoMenu");
    // bind to the open event
    menu.bind("open", function(e) {
        // handle event
    });
</script>