如何關閉事件YesNo Alert Box？

這是非常基本的，有samples那裏，但我仍然掙扎。如何關閉事件YesNo Alert Box？

我需要用yes/no選項發出警報。
我需要在動作中做到這一點。

Alert.show("Open new tab to search in Google Maps?", 
"No places found", Alert.YES | Alert.NO, this, alertListener, null, Alert.NO); 

function alertListener(eventObj:CloseEvent):void { 

    if (eventObj.detail==Alert.YES) { 
    Alert.show("You clicked yes"); 
    } 
}

此方法返回閃存調試播放一個例外：

TypeError: Error #1034: Type Coercion failed: cannot convert mx.rpc::[email protected] to flash.display.Sprite. 
    at Function/ExampleCustomTools.Locator:locator/private:doFind/ExampleCustomTools.Locator:onResult()[C:\Users\sjackson\Adobe Flash Builder 4\DekhoSimulator_Profiler\src\ExampleCustomTools\Locator\locator.mxml:142] 
    at mx.rpc::AsyncResponder/result()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\AsyncResponder.as:95] 
    at com.esri.ags.tasks::Locator/handleAddressCandidates()[C:\checkout\flex_api2\api\src\com\esri\ags\tasks\Locator.as:187] 
    at Function/http://adobe.com/AS3/2006/builtin::call() 
    at com.esri.ags.tasks::BaseTask/handleResult()[C:\checkout\flex_api2\api\src\com\esri\ags\tasks\BaseTask.as:667] 
    at Function/com.esri.ags.tasks:BaseTask/esri_internal:sendURLVariables2/com.esri.ags.tasks:result()[C:\checkout\flex_api2\api\src\com\esri\ags\tasks\BaseTask.as:604] 
    at mx.rpc::Responder/result()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\Responder.as:56] 
    at mx.rpc::AsyncToken/http://www.adobe.com/2006/flex/mx/internal::applyResult()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\AsyncToken.as:239] 
    at mx.rpc.events::ResultEvent/http://www.adobe.com/2006/flex/mx/internal::callTokenResponders()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\events\ResultEvent.as:207] 
    at HTTPOperation/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\http\HTTPService.as:991] 
    at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:318] 
    at mx.rpc::Responder/result()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\Responder.as:56] 
    at mx.rpc::AsyncRequest/acknowledge()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:84] 
    at DirectHTTPMessageResponder/completeHandler()[E:\dev\hero_private_beta\frameworks\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:451] 
    at flash.events::EventDispatcher/dispatchEventFunction() 
    at flash.events::EventDispatcher/dispatchEvent() 
    at flash.net::URLLoader/onComplete()

我已經嘗試了代碼的幾個變化，但仍然出現錯誤。道歉爲這樣一個微不足道的Q，但感謝任何幫助指出最新的錯誤和最優雅的方式做到這一點。

Here is the code in its fuller context at pastebin (line 31).

來源

2011-10-09 Simon

完成。我是編程新手 - 如果我經歷過，它會在警戒線上跌倒，所以我認爲這是原因？我會做一些閱讀，瞭解爲什麼它努力轉換AsyncResponder。 – Simon

請顯示locator.mxml的代碼 –

錯誤不在警報中。該錯誤與類型轉換有關。請檢查BaseTask.as文件中的「結果事件」。 –

我應該堅持更多我自己的一點。代碼修復如下：

Alert.show("Open new tab to search in Google Maps?", "No places found", Alert.YES | Alert.NO, null, alertListener, null, Alert.NO); 

         function alertListener(eventObj:CloseEvent):void { 
          // Check to see if the OK button was pressed. 
          if (eventObj.detail==Alert.YES) { 
           Alert.show("here"); 
          } 
         }

來源

2011-10-09 12:17:43 Simon

如何關閉事件YesNo Alert Box？

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