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    copied!<p>I don't understand why affablebloke's answer is marked as "correct" and upvoted so much!? </p> <p>Caffeine Coma asked about updating a <strong>Cell Browser</strong> and not a <strong>Cell Table</strong>, that are totally different things!</p> <p>For me, the following trick worked: I define the <code>DataProvider</code>s outside of the <code>TreeViewModel</code> and pass them as an argument to the constructor. In my case they provide empty data structures at the beginning. </p> <p>Now you have a reference to the <code>DataProvider</code>s from "outside" in order to update the Cell Browser.</p> <p>Example:</p> <pre><code>private class MyTreeViewModel implements TreeViewModel { AbstractDataProvider&lt;MyDataStructure&gt; myDataProvider; public MyTreeViewModel(AbstractDataProvider&lt;MyDataStructure&gt; myDataProvider) { this.myDataProvider = myDataProvider; } @Override public &lt;T&gt; NodeInfo&lt;?&gt; getNodeInfo(T value) { if(value == null) { // Level 0 return new DefaultNodeInfo&lt;MyDataStructure&gt;(myDataProvider, new MyCellImpl()); } } } AbstractDataProvider&lt;MyDataStructure&gt; myDataProvider = new ListDataProvider&lt;MyDataStructure&gt;(new ArrayList&lt;MyDataStructure&gt;()); // or AsyncDataProvider MyTreeViewModel myModel = new MyTreeViewModel(myDataProvider); CellBrowser&lt;MyDataStructure&gt; cellBrowser = new CellBrowser.Builder&lt;MyDataStructure&gt;(myModel, null).build(); /* here you can do some stuff, for example, bind the CellBrowser to a template with UiBinder */ /* if you use a ListDataProvider, do */ myDataProvider.setList(myDataStructureFromSomewhere); myDataProvider.refresh(); /* if you use an AsyncDataProvider, do */ myDataProvider.updateRowData(..., myDataStructureFromSomewhere); myDataProvider.updateRowCount(...); </code></pre>
 

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