Flex:发送参数给Alert closeHandler [英] Flex: Sending parameters to Alert closeHandler
本文介绍了Flex:发送参数给Alert closeHandler的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
是否可以将参数发送到closeHandler警报功能?
函数获得的fisrt参数是CloseEvent,但是如何发送另一个?
< s:Button id =btnLoadLocalDatalabel =加载数据
click =Alert.show('用本地数据填充列表?','Alert.YES | Alert.CANCEL,this,loadLocalData ),null,Alert.OK);/>
谢谢!
解决方案
这应该可以使用Flex的动态函数构造。一个类似的问题被问到这里 。
下面是一个例子:
参数和处理程序:
var parameters:String =我想传递的某个参数;
private function loadLocalData(e:Event,parameter:String):void
{
// voila,这里是你的参数
}
$ b $ ()方法:函数
{
return function(event:Event):void {method.apply(null,[event] .concat(additionalArguments)); }
您的组件:
< s:按钮id =btnLoadLocalDatalabel =加载数据
click =Alert.show('填充列表本地数据?,Alert.YES | Alert.CANCEL,this,addArguments(loadLocalData,[parameters])),null,Alert.OK);/>
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);"/>
Thank you!
解决方案
This should be possible using Flex's dynamic function construction. A similar question was asked here.
Here's an example:
The parameters and handler:
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));}
}
Your component:
<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);"/>
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