Cascade

<input id="dropdownlist" />
<script>
$("#dropdownlist").kendoDropDownList({
  dataSource: [ "Apples", "Oranges" ],
  cascade: function() {
    // Handle the event
  }
});
</script>

<input id="dropdownlist" />
<script>
function dropdownlist_cascade(e) {
    // Handle the event
}
$("#dropdownlist").kendoDropDownList({
  dataSource: [ "Apples", "Oranges" ]
});

var dropdownlist = $("#dropdownlist").data("kendoDropDownList");
dropdownlist.bind("cascade", dropdownlist_cascade);
</script>