destroy
Prepares the DropDownTree 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.
Important: This method does not remove the DropDownTree element from DOM.
Example
<input id="dropdowntree"/>
<script>
$("#dropdowntree").kendoDropDownTree();
var dropdowntree = $("#dropdowntree").data("kendoDropDownTree");
dropdowntree.destroy();
</script>