Bug 198031 Legend interactivity does not work correctly for drill-throughs
Under Value (Y) Series enable interactivity for the event "Mouse Click" Set action to Hyperlink The type of the hyperlink is Drill-through and the target is the a sub-report Pass parameter to sub-report as row["value_of_the_legend_item"] Suppose there are 3 values, x,y and z No matter which legend item you click (x, y or z), z gets passed as param to the subreport
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/composites/TriggerDataComposite.java
private final static int INDEX_1_URL_REDIRECT = 1;
	private final static int INDEX_2_TOOLTIP = 2;
	private final static int INDEX_3_TOOGLE_VISABILITY = 3;
	private final static int INDEX_4_SCRIPT = 4;
	private final static int INDEX_5_HIGHLIGHT = 5;
	private final static int INDEX_6_CALLBACK = 6;
	private final static int INDEX_7_TOOGLE_DATAPOINT = 7;
	
	private TriggerSupportMatrix triggerMatrix;
	public TriggerDataComposite( Composite parent, int style, EList triggers,
			ChartWizardContext wizardContext,
			int iInteractivityType, boolean bEnableURLParameters,
			boolean bEnableShowTooltipValue )
	{
		super( parent, style );
		this.wizardContext = wizardContext;
		this.bEnableURLParameters = bEnableURLParameters;
		this.bEnableShowTooltipValue = bEnableShowTooltipValue;
		this.triggersList = triggers;
		this.triggerMatrix = new TriggerSupportMatrix( wizardContext.getOutputFormat( ),
				iInteractivityType );
		init( );
		placeComponents( );
		addDisposeListener( new DisposeListener( ) {
			public void widgetDisposed( DisposeEvent e )
			{
				if ( needSaveWhenDisposing )
				{
					
					updateTrigger( cmbTriggerType.getText( ) );