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
lblValueParm.setText( Messages.getString( "TriggerDataComposite.Lbl.ValueSeries" ) ); 
			lblValueParm.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.ParameterValue" ) ); 
		}
		txtValueParm = new Text( grpParameters, SWT.BORDER );
		GridData gdTXTValueParm = new GridData( GridData.FILL_HORIZONTAL );
		gdTXTValueParm.horizontalSpan = 2;
		txtValueParm.setLayoutData( gdTXTValueParm );
		txtValueParm.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.ParameterValue" ) ); 
		Label lblSeriesParm = new Label( grpParameters, SWT.NONE );
		{
			GridData gdLBLSeriesParm = new GridData( );
			gdLBLSeriesParm.horizontalIndent = 2;
			lblSeriesParm.setLayoutData( gdLBLSeriesParm );
			lblSeriesParm.setText( Messages.getString( "TriggerDataComposite.Lbl.ValueSeriesName" ) ); 
			lblSeriesParm.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.ParameterSeries" ) ); 
		}
		txtSeriesParm = new Text( grpParameters, SWT.BORDER );
		GridData gdTXTSeriesParm = new GridData( GridData.FILL_HORIZONTAL );
		gdTXTSeriesParm.horizontalSpan = 2;
		txtSeriesParm.setLayoutData( gdTXTSeriesParm );
		txtSeriesParm.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.ParameterSeries" ) ); 
		populateLists( );
	}
	private void populateLists( )
	{
		String[] triggerTypes = LiteralHelper.triggerConditionSet.getDisplayNames( );
		cmbTriggerType.setItems( triggerTypes );
		cmbTriggerType.select( 0 );
		Trigger firstTrigger = null;
		for ( int i = 0; i < triggerTypes.length; i++ )