DataDefinitionTextManager.getInstance( ).refreshAll( ); doLivePreview( );
	private void switchDataSet( String datasetName ) throws ChartException	{		try		{			getWizardContext( ).getDataServiceProvider( )					.setDataSet( datasetName );			tablePreview.clearContents( );			if ( datasetName != null )			{				switchDataTable( datasetName );			}			tablePreview.layout( );		}		catch ( Throwable t )		{			throw new ChartException( ChartEnginePlugin.ID,					ChartException.DATA_BINDING,					t );		}	}