the trick is to use "final" references to the data table and the
visualization, like this:

void addSelectHandler(final PieChart chart, final AbstractDataTable
dataTable) {
        chart.addSelectHandler(new SelectHandler() {
          @Override
          public void onSelect(SelectEvent event) {
            String label =
dataTable.getColumnLabel(chart.getSelections()[0].getColumn());
            doSomethingWithColumnLabel(label);
          }
        });
}


On Tue, Feb 16, 2010 at 6:25 AM, carlos <[email protected]> wrote:

> I'm constructing a google visualization with the google web toolkit.
>
> I am working off of this example and trying to add a selection
> handeler:
> http://code.google.com/p/gwt-google-apis/wiki/VisualizationGettingStarted
>
> In the example when you select a cell it displays the row and column
> numbers.  I would like to display the column's label instead of the
> row and column numbers.  Is there an easy way to access the selection
> cell's column label from the selection handler? Thanks!
>
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