Indicates whether the keyboard navigation is enabled or disabled.

If you set the navigatable option to true, you also have to set selectable.

Example

<select id="listBox"></select>
<script>
$("#listBox").kendoListBox({
    navigatable: true,
    selectable: "single",
    dataSource: [
        { name: "Item 1", id: 1 },
        { name: "Item 2", id: 2 },
        { name: "Item 3", id: 3 }
    ],
    dataTextField: "name",
    dataValueField: "id"
});
</script>
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