title: Kendo Datasource new data sync
body: <p>can i check what is new data on sync?</p>
  
  <p>i have this:</p>
  
  <pre><code>$('#order_it').click(function(){
      gridNewData.sync(); // this will send data to server
  });
  </code></pre>
  
  <p>gridNewData complete:</p>
  
  <pre><code>complete: function(xhr, textStatus) {
      if (textStatus == 'success') {
          orders.read(); // this will refresh orders, and grid too, a
          gridNewData.data([]); // empty that temp datasource
      }
  }
  </code></pre>
  
  <p>and:</p>
  
  <pre><code>var orders = new kendo.data.DataSource({
      autoSync: false,
      transport: {
          read: {
              contentType: 'application/json',
              url: '/dokument/orders/',
              dataType: 'json',
              complete: function(xhr, textStatus) {
  
                  // i think that here i need to get new synced items(or uids)
  
              }
          }
      },
      schema: {
          model: {
              id: 'id'
          }
      }
  });
  </code></pre>
  
  <p>I need to make that rows in grid with another color, but can't find way to check what is new data.</p>