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
}
		grpValue.layout( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
	 */
	public void widgetSelected( SelectionEvent e )
	{
		if ( e.getSource( ).equals( cmbActionType ) )
		{
			String triggerType = cmbTriggerType.getText( );
			if ( cmbActionType.getSelectionIndex( ) == 0 )
			{
				cmbTriggerType.unmarkSelection( triggerType );
				Object trigger = triggersMap.get( triggerType );
				if ( trigger != null )
				{
					triggersMap.remove( triggerType );
					triggersList.remove( trigger );
				}
			}
			else
			{
				cmbTriggerType.markSelection( triggerType );
			}
			cmbTriggerType.setText( triggerType );
			switchUI( );
		}