open

Opens the button menu.

Example

<button id="dropdownbutton" type="button">Button</button>
<script>
    $("#dropdownbutton").kendoDropDownButton({
        items:[
            { id: "item1", text: "Item 1" },
            { id: "item2", text: "Item 2" }
        ]
    });
    var button = $("#dropdownbutton").data("kendoDropDownButton");

    button.open();
</script>