从Flex中的模式弹出窗口打开模式弹出？

Question

是否可以从模态弹出窗口打开模态弹出窗口？我一直没能得到以下通过一个开放的模式弹出调用showDataEntry（）工作：

// at the top of the modal's mxml, inside <mx:TitleWindow> 
import mx.managers.PopUpManager; 
import views.windows.MyDataEntry; 

... 

private function showDataEntry():void { 
    var myDataEntry:MyDataEntry = MyDataEntry(PopUpManager.createPopUp(this,MyDataEntry,true)); 
    PopUpManager.centerPopUp(myDataEntry); 
} 

... 

<mx:Button id="btnDataEntry" label="Data Entry" click="showDataEntry();" /> 

Answer 1

不知道MyDataEntry究竟是干什么的，这看起来可能是问题。尝试创建弹出窗口并将其传递给一个类以创建内容。

var myDataEntry:MyDataEntry = PopUpManager.createPopUp(this,myDataEntry,true) as MyDataEntry;