禁用按钮栏中的单个按钮 [英] Disable individual buttons in a buttonbar

问题描述

如何在Flex的按钮栏中禁用单个按钮？ 解决方案

这里是示例应用程序。 >

 <？xml version =1.0encoding =utf-8？> 
  creationComplete =onComplete（）;> 
< mx：Script> 
<！[CDATA [
 import mx.controls.Button; 
 private function onComplete（）：void {
 for（var i：int = 0; i< btns.numChildren; i ++）{
 if（i == 0 || i％2 = = 0）{
 Button（btns.getChildAt（i））。enabled = false; 
} 
} 
} 
]]> 
< / mx：Script> 
< mx：LinkBar id =btns> 
< mx：dataProvider> 
< mx：ArrayCollection> 
< mx：Array> 
< mx：Object label =Button 1/> 
< mx：Object label =Button 2/> 
< mx：Object label =Button 3/> 
< mx：Object label =Button 4/> 
< mx：Object label =Button 5/> 
< mx：Object label =Button 6/> 
< / mx：Array> 
< / mx：ArrayCollection> 
< / mx：dataProvider> 
< / mx：LinkBar> 
< / mx：WindowedApplication> 
  

基本上，您可以使用

 libkBarInst.getChildAt（n）
  

给你一个Button。
希望有帮助。

How can I disable a single button in a buttonbar in Flex?

解决方案

here is the sample app.

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml"
    creationComplete="onComplete();">
    <mx:Script>
        <![CDATA[
            import mx.controls.Button;
            private function onComplete():void {
                for ( var i:int=0; i<btns.numChildren; i++ ) {
                    if ( i == 0 || i % 2 == 0 ) {
                        Button(btns.getChildAt(i)).enabled = false;
                    }
                }
            }
        ]]>
    </mx:Script>
    <mx:LinkBar id="btns">
        <mx:dataProvider>
            <mx:ArrayCollection>
                <mx:Array>
                    <mx:Object label="Button 1" />
                    <mx:Object label="Button 2" />
                    <mx:Object label="Button 3" />
                    <mx:Object label="Button 4" />
                    <mx:Object label="Button 5" />
                    <mx:Object label="Button 6" />
                </mx:Array>
            </mx:ArrayCollection>
        </mx:dataProvider>
    </mx:LinkBar>
</mx:WindowedApplication>

Basically you access individual buttons using

libkBarInst.getChildAt(n)

which gives you a Button. Hope that helps.

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