title: Kendo combo box retrive selected item with virtual
body: <p>I have a kendo combo box with virtual enabled and I would like to retrive selected item beacause I need more information after.</p>
  
  <p>I got undefined when I select an item after some virtual loading.</p>
  
  <p>This is my code</p>
  
  <pre><code>$scope.select_item_options = {
          dataValueField: "id",
          dataTextField: "description_nhl",
          template: "#= description #",
          virtual: true,
          filter: "contains",
          change: function(e) {
              var selected_index = this.selectedIndex;
              if (selected_index &lt; 0) {
                  delete $scope.work_item.item_id;
              } else {
                  var item = this.dataItem(this.select());
                  console.log(item);
                  console.log(this.dataItem(selected_index));
                  // undefined here
              }
              $scope.$apply();
          },
          dataSource: new kendo.data.DataSource({
              transport: {
                  read: {
                      type: "GET",
                      url: APP_CONFIG.api.base_url + "/items/itemTypes/AC",
                      contentType: "application/json; charset=utf-8",
                      dataType: "json",
                      beforeSend: function(xhr) {
                          xhr.setRequestHeader('Authorization', storageService.getValue('auth_token'));
                      },
                      complete: function(result, status) {
                          if (result.status !== 200 || !result.responseJSON.fn.result.done) {
                              return httpService.callbackOnError(result.responseJSON, result.status);
                          }
                      }
                  }
              },
              schema: {
                  data: 'data',
                  total: function(data) {
                      return data.dataCount;
                  }
              },
              serverPaging: true,
              serverSorting: true,
              serverFiltering: true,
              pageSize: 5,
              sort: {field: "description", dir: "asc"}
          })
      };
  </code></pre>