headerTemplate String|Function(default: "#:value#")

The header item template (applicable when the type is set to group).

    <div data-role="view">
      <ul data-role="listview" data-source="groupedData" data-template="my-template" data-header-template="header-template"></ul>
    </div>


    <script type="text/x-kendo-template" id="my-template">
      <h3 class="item-title">#: name #</h3>
      <p class="item-info">#: description #</p>
    </script>

    <script type="text/x-kendo-template" id="header-template">
        my group - #: value #
    </script>

    <script>
    var groupedData = new kendo.data.DataSource({
      data: [
        { name: "Sashimi Salad", description: "Organic greens topped with market fresh sashimi, wasabi soy vinaigrette.",  letter: "S" },
        { name: "Seaweed Salad", description: "A nice seaweed salad.",  letter: "S" },
        { name: "Edamame", description: "Boiled soy beans with salt.",  letter: "E" },
        { name: "Maguro", description: "Tuna pieces.",  letter: "M" },
        { name: "Tekka Maki", description: "Tuna roll with wasabi.",  letter: "T" },
        { name: "California Rolls", description: "Crab sticks, avocado and cucumber.",  letter: "C" }
      ],
      group: { field: "letter" }
    });

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