initialized

    
 <button id="reload" class="gj-button-md">Reload</button>
 <div id="tree"></div>
 <script>
     var tree = $('#tree').tree({
         dataSource: '/Locations/Get',
         initialized: function (e) {
             alert('initialized is fired.');
         }
     });
     $('#reload').on('click', function() {
         tree.reload();
     });
 </script>