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當我創建類似如下:Flex:基於標記的事件處理程序的編程等價物?
<mx:DataGrid id"myDataGrid"
itemEditBegin="myDataGrid_itemEditBeginHandler(event)" />
什麼時候的事件偵聽「itemEditBegin」獲取添加和刪除?難道這基本上是一樣的:
<mx:DataGrid id="myDataGrid"
creationComplete="myDataGrid_creationCompleteHandler(event)" />
protected function myDataGrid_creationCompleteHandler(event:FlexEvent):void
{
this.myDataGrid.addEventListener(DataGridEvent.ITEM_EDIT_BEGIN,
this.myDataGrid_itemEditBeginHandler);
}
protected function myDataGrid_whatEventDispatcherGoesHere?Handler(event:FlexEvent):void
{
this.myDataGrid.removeEventListener(DataGridEvent.ITEM_EDIT_BEGIN,
this.myDataGrid_itemEditBeginHandler);
}
基本上,我想知道我要補充「myDataGrid.addEventListener」如果我想以編程方式做到這一點?它應該在對象本身的creationComplete監聽器函數中,還是在其駐留的任何父對象的creationComplete監聽器函數中?
謝謝!去除它呢?有沒有什麼東西可以在對象被破壞時移除偵聽器,還是最好手動刪除它? – Ocelot20 2011-02-10 15:42:54