为什么在使用过滤器函数过滤了一个数组集合之后，没有调用dataprovider的setter
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我正在使用这个：
private var _hrInfoView:ArrayCollection;
[Bindable]
public function get HRInfoView():ArrayCollection
{
return _hrInfoView;
}
public function set HRInfoView(value:ArrayCollection):void
{
_hrInfoView = value;
}
private function onFilterByContent(event:ContextMenuEvent):void
{
HRInfoView.filterFunction = processFilter;
HRInfoView.refresh();
//Break point here shows HRInfoView as different what is in line above. Why is setter not called?
}
没有找到相关结果
已邀请:
3 个回复
墩瓣茅械
嫩昧竞莫
<mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] public var myAC:ArrayCollection = new ArrayCollection([{label:\"One\"}, {label:\"Two\"}, {label:\"Three\"}, {label:\"Four\"}]); [Bindable] public var myAC2:ArrayCollection = new ArrayCollection(); public function removeFilter(e:Event):void{ trace(this.myAC.source.length ) this.myAC.filterFunction = null; this.myAC.refresh() trace(this.myAC.source.length ) } public function addFilter(e:Event):void{ trace(this.myAC.source.length ) this.myAC.filterFunction = filterFunc; this.myAC.refresh() trace(this.myAC.source.length ) } public function filterFunc( item:Object ):Boolean{ if( item.label == \"One\" ) return true; if( item.label == \"Two\" ) return true; return false; } public function copyData(e:Event):void{ myAC2 = new ArrayCollection( myAC.toArray() ); myAC2.refresh() } ]]> </mx:Script> <mx:Label text=\"original data with filter option\" y=\"0\"/> <mx:DataGrid y=\"26\" id=\"nameGrid\" dataProvider=\"{myAC}\" width=\"200\" height=\"200\"/> <mx:Button id=\"button2\" label=\"Add Filter\" click=\"addFilter(event)\" x=\"0\" y=\"234\"/> <mx:Button id=\"button3\" y=\"264\" label=\"Remove Filter\" click=\"removeFilter(event)\"/> <mx:Button id=\"button4\" x=\"289\" y=\"234\" label=\"copy filtered data\" click=\"copyData(event)\"/> <mx:Label text=\"Copied filtered data\" x=\"300\" y=\"0\"/> <mx:DataGrid y=\"26\" x=\"287\" id=\"nameGrid2\" dataProvider=\"{myAC2}\" width=\"200\" height=\"200\"/>孤捷侩
和都在调用getter以获取，然后从中调用函数或属性。