Help! Invient Chart problem,chart Point Listener unvalidy

Flow
1

Hello,

when I implements the PointClickListener,PointSelectListener on the some component object, the src as:

first I add component object to chart object as listener.

                                 miniScaterChartControl.addPointSelectListener(this);
	miniScaterChartControl.addPointClickListener(this);

second i implement the method in component object

@Override
public void pointSelected(PointSelectEvent pointSelectEvent) {
	Point point = pointSelectEvent.getPoint();
	this.r_pointInfo.setCaption("selected:"+point.getX()+","+point.getY());
	
}

@Override
public void pointClick(PointClickEvent pointClickEvent) {
	Point point = pointClickEvent.getPoint();
	this.r_pointInfo.setCaption("click:"+point.getX()+","+point.getY());
}

two my surprise

the pointClickListener is validy,but the pointSelectListener is unvalidy

any nice men give me help please!