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    <p>I solved the issue by modifying Google's ListDataProviderExample to use CellTable. Since the number of Columns is not known at compile time, I used the IndexedColumn class by Thomas Broyer (<a href="https://stackoverflow.com/questions/7172262/create-gwt-celltable-dynamically">Create GWT CellTable Dynamically</a>) as referred to by Juan Pablo Gardella (<a href="https://groups.google.com/forum/?fromgroups=#!topic/google-web-toolkit/v6vZT0eUQKU" rel="nofollow noreferrer">https://groups.google.com/forum/?fromgroups=#!topic/google-web-toolkit/v6vZT0eUQKU</a>). Here is my test code:</p> <pre><code>package com.google.gwt.examples.view.client; import com.google.gwt.cell.client.TextCell; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.cellview.client.CellTable; import com.google.gwt.user.cellview.client.Column; import com.google.gwt.user.cellview.client.TextHeader; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.view.client.ListDataProvider; import java.util.ArrayList; import java.util.Arrays; import java.util.List; public class ListDataProviderExample implements EntryPoint { String[][] rowsA = {{"aaaaa","bbbbb","ccccc"}, {"111", "222", "333"}, {"A", "B", "C"}}; public void onModuleLoad() { // Create a CellTable. CellTable&lt;List&lt;String&gt;&gt; table = new CellTable&lt;List&lt;String&gt;&gt;(); // Get the rows as List int nrows = rowsA.length; int ncols = rowsA[0].length; ArrayList rowsL = new ArrayList(nrows); //List rowsL = new ArrayList(nrows); for (int irow = 0; irow &lt; nrows; irow++) { List&lt;String&gt; rowL = Arrays.asList(rowsA[irow]); rowsL.add(rowL); } // Create table columns for (int icol = 0; icol &lt; ncols; icol++) { table.addColumn(new IndexedColumn(icol), new TextHeader(rowsA[0][icol])); } // Create a list data provider. final ListDataProvider&lt;List&lt;String&gt;&gt; dataProvider = new ListDataProvider&lt;List&lt;String&gt;&gt;(rowsL); // Add the table to the dataProvider. dataProvider.addDataDisplay(table); // Add the widgets to the root panel. VerticalPanel vPanel = new VerticalPanel(); vPanel.add(table); RootPanel.get().add(vPanel); } } class IndexedColumn extends Column&lt;List&lt;String&gt;, String&gt; { private final int index; public IndexedColumn(int index) { super(new TextCell()); this.index = index; } @Override public String getValue(List&lt;String&gt; object) { return object.get(this.index); } } </code></pre>
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    1. POGWT - How to display String[][] array in CellTable or DataGrid
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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