Refreshing Widgets
To create a widget that automatically updates when some of the scope variables changes, update the widget from controller by using the special k-rebind attribute.
This option destroys the original widget and recreates it using the changed option. To use k-options and pass the same variable to k-rebind when watching multiple options for changes, use the <ul kendo-menu k-options="menuOptions" k-rebind="menuOptions"> ... </ul> configuration. This approach is not suitable for data-bound widgets because they are recreated each time their data is changed—for example, after paging the Grid.
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2023.3.1010/js/angular.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2023.3.1010/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/themes/7.0.1/default/default-ocean-blue.css">
<div ng-app="app" ng-controller="MyCtrl">
<ul kendo-menu k-orientation="orientation" k-rebind="orientation">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
<select kendo-drop-down-list ng-model="orientation">
<option>horizontal</option>
<option>vertical</option>
</select>
</div>
<script>
angular.module("app", [ "kendo.directives" ]).controller("MyCtrl", function($scope) {
$scope.orientation = "horizontal";
});
</script>