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
{
			GridData gd = new GridData( );
			btnBaseURL.setLayoutData( gd );
			btnBaseURL.setText( Messages.getString( "TriggerDataComposite.Text.EditBaseURL" ) ); 
			btnBaseURL.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.InvokeURLBuilder" ) ); 
			btnBaseURL.addSelectionListener( this );
			btnBaseURL.setEnabled( wizardContext.getUIServiceProvider( )
					.isInvokingSupported( ) );
			
			
			
		}
		Label lblDefine = new Label( cmpURL, SWT.WRAP );
		{
			GridData gd = new GridData( );
			gd.horizontalIndent = 2;
			gd.horizontalSpan = 3;
			gd.widthHint = 200;
			lblDefine.setLayoutData( gd );
			lblDefine.setText( Messages.getString( "TriggerDataComposite.Label.Description" ) ); 
		}
		btnAdvanced = new Button( cmpURL, SWT.NONE );
		{
			GridData gd = new GridData( );
			gd.horizontalSpan = 2;
			btnAdvanced.setLayoutData( gd );
			btnAdvanced.setText( getAdvancedButtonText( bAdvanced ) );
			btnAdvanced.setToolTipText( Messages.getString( "TriggerDataComposite.Tooltip.Advanced" ) ); 
			btnAdvanced.addSelectionListener( this );
			btnAdvanced.setEnabled( bEnableURLParameters );