Flex:向Alert closeHandler 发送参数 [英] Flex: Sending parameters to Alert closeHandler

问题描述

是否可以将参数发送到 closeHandler Alert 函数?函数得到的第一个参数是CloseEvent，但是如何再发送一个呢?

Is it possible to send parameters to a closeHandler Alert function? The fisrt parameter the function gets is the CloseEvent, but how to send another one?

<s:Button id="btnLoadLocalData" label="Load data"
          click="Alert.show('Populate list with local data?', '', Alert.YES | Alert.CANCEL, this, loadLocalData(???parameters???), null, Alert.OK);"/>

谢谢！

推荐答案

这应该可以使用 Flex 的动态函数构造来实现.在这里问了一个类似的问题.

This should be possible using Flex's dynamic function construction. A similar question was asked here.

这是一个例子:

参数和处理程序:

var parameters:String = "Some parameter I want to pass";

private function loadLocalData(e:Event, parameter:String):void
{
  // voila, here's your parameter
}

private function addArguments(method:Function, additionalArguments:Array):Function 
{
  return function(event:Event):void {method.apply(null, [event].concat(additionalArguments));}
}

您的组件:

<s:Button id="btnLoadLocalData" label="Load data"
          click="Alert.show('Populate list with local data?', '', Alert.YES | Alert.CANCEL, this, addArguments(loadLocalData, [parameters])), null, Alert.OK);"/>

这篇关于Flex:向Alert closeHandler 发送参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！