數據網格數據提供商變化

崩潰我有一個數據網格中的單選按鈕組，每當我試圖改變選中的單選按鈕的網頁崩潰。以下是我如何將單選按鈕放在數據網格中。任何人都可以看到問題的原因是什麼？數據網格數據提供商變化

MXML

<mx:Accordion> 
<fx:Declarations> 
<s:RadioButtonGroup id="cover"/> 
</fx:Declarations> 
<fx:Script> 
<![CDATA[[ 
[Bindable] public var arrColl = new ArrayCollection(); 
arrColl.addItem(new ObjectProxy({name:"Jon Doe", position:1, cover:true, group:cover})); 
arrColl.addItem(new ObjectProxy({name:"John Smith", position:2, cover:true, group:cover})); 
]]> 
</fx:Script> 
<fx:Binding source="{dg.dataProvider as ArrayCollection}" destination="{arrColl}"/> 
<mx:DataGrid id="dg" dataProvider="{arrColl}" ..> 
... 
</mx:DataGrid>

渲染

<?xml version="1.0" encoding="utf-8"?> 
<s:MXDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"     xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx" 
focusEnabled="true"> 
<fx:Script> 
<![CDATA[ 
import mx.events.DynamicEvent; 
public function selection(event:MouseEvent):void 
{ 
var selectionEvt:DynamicEvent = new DynamicEvent("selectionEvt", true); 
selectionEvt.data = this.data; 
dispatchEvent(selectionEvt); 
} 
]]> 
</fx:Script> 
<s:RadioButton label="Cover" group="{data.group}" selected="{data.cover}" click="selection(event)"/> 
</s:MXDataGridItemRenderer>

選擇單選按鈕事件處理程序

private function updateDp(event:DynamicEvent):void 
{ 
if (event.type == "selectionEvt") 
{ 
for (var i:int = 0; i < editGrid.dataProvider.length; i++) 
{ 
editGrid.dataProvider.getItemAt(i).cover = false; // Unselect all members of radio button group 
} 
var index:int = editGrid.dataProvider.getItemIndex(event.data); 
editGrid.dataProvider.getItemAt(index).cover = true; // Select target radio button 
}

來源

2010-10-05 Mads610

你得到什麼，在撞車前的調試器？我傾向於認爲這可能是一個堆棧溢出與你結合... – 2010-10-06 10:51:54

調試器不提供任何其他信息回事。 – Mads610 2010-10-06 20:53:46