destroy
Prepares the DropDownList for safe removal from DOM. Detaches all event handlers and removes jQuery.data attributes to avoid memory leaks. Calls destroy method of any child Kendo widgets.
This method does not remove the DropDownList element from DOM.
Example
<input id="dropdownlist" />
<script>
$("#dropdownlist").kendoDropDownList();
var dropdownlist = $("#dropdownlist").data("kendoDropDownList");
dropdownlist.destroy();
</script>