index Number

Defines the initially selected Button (zero based index).

    <div data-role="view">
      <ul data-role="buttongroup" data-index="1">
        <li>Option 1</li>
        <li>Option 2</li>
        <li>Option 3</li>
      </ul>
    </div>


    <script>
    var app = new kendo.mobile.Application();
    </script>