this.myScroller.verticalScrollBar.addEventListener(Event.CHANGE,updateSelected);
maxNum=this.myScroller.verticalScrollBar.maximum;//滾動條最大滾動距離
private function updateSelected(e:Event):void
{
var num:Number=this.myScroller.verticalScrollBar.value;//滾動條所在位置的值
if(num<=maxNum){
this.iconDatagridLeft.y=80+num;
this.iconDatagridRight.y=80+num;
}