Actionscript 3 使用ActionScript更改标签文本
我有一个非常基本的问题。为什么这不起作用Actionscript 3 使用ActionScript更改标签文本,actionscript-3,apache-flex,actionscript,Actionscript 3,Apache Flex,Actionscript,我有一个非常基本的问题。为什么这不起作用 <?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="1000" height="550" minWidth="960" backgroundColor="#F2F0F0">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:Label id="test1" x="43" y="259" text="Label"/>
<fx:Script>
<![CDATA[
test1.text = "Yay! This works...!";
]]>
</fx:Script>
</s:Application>
我遇到此错误:访问未定义的属性。
谢谢 在创建组件之前设置文本。尝试将分配放入方法并在creationComplete上调用该方法:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="1000" height="550" minWidth="960" backgroundColor="#F2F0F0"
creationComplete="onCreationComplete()">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:Label id="test1" x="43" y="259" text="Label"/>
<fx:Script>
<![CDATA[
public function onCreationComplete():void {
test1.text = "Yay! This works...!";
}
]]>
</fx:Script>
</s:Application>
您正在创建组件之前设置文本。尝试将分配放入方法并在creationComplete上调用该方法:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="1000" height="550" minWidth="960" backgroundColor="#F2F0F0"
creationComplete="onCreationComplete()">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:Label id="test1" x="43" y="259" text="Label"/>
<fx:Script>
<![CDATA[
public function onCreationComplete():void {
test1.text = "Yay! This works...!";
}
]]>
</fx:Script>
</s:Application>