Flex3 Air 中的验证器组件

发布于 2024-08-09 02:29:41 字数 471 浏览 3 评论 0原文

如何在 Air 应用程序中使用必需验证器、整数验证器等验证器控件？我尝试使用它们，但收到此错误：

此处不允许组件声明。（注意：视觉子项必须实现 mx.core.IUIComponent）

我已经像这样导入了验证器...

import mx.validators.Validator;

并像这样使用

<mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
<mx:Validator id="reqValidator" source="txtQuestCaption">
</mx:Validator>

但是我得到了上面的错误..

如何在空气中使用验证器？

原文

How to use validator controls like Required validator, integer validator etc in Air application? I tried to use them but I got this error:

Component declarations are not allowed here. (Note: visual children must implement mx.core.IUIComponent)

i have imported the validator like this...

import mx.validators.Validator;

and used like this

<mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
<mx:Validator id="reqValidator" source="txtQuestCaption">
</mx:Validator>

But i got that above error..

how to use validator in air ?

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清旖 2024-08-16 02:29:41

这段代码似乎嵌套在某个容器标签内。将标记移出当前位置，并将其直接放置在根 mxml 标记内。非视觉标签（如 Validator、Style 等）应添加为根 mxml 标签的直接子代

<!-- wrong -->
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml">
 <mx:Canvas>
  <mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
  <mx:Validator id="reqValidator" source="txtQuestCaption"/>
 </mx:Canvas>
</mx:Panel>

<!-- correct -->
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml">
  <mx:Canvas>
    <mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
  </mx:Canvas>
  <mx:Validator id="reqValidator" source="txtQuestCaption"/>
</mx:Panel>

It seems that this code is nested inside some container tag. Move the <mx:Validator/> tag out of the current position and place it directly within the root mxml tag. Non visual tags like Validator, Style etc should be added as the immediate children of the root mxml tag

<!-- wrong -->
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml">
 <mx:Canvas>
  <mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
  <mx:Validator id="reqValidator" source="txtQuestCaption"/>
 </mx:Canvas>
</mx:Panel>

<!-- correct -->
<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml">
  <mx:Canvas>
    <mx:TextArea id="txtQuestCaption" change="txtQuestCaption_change(event)"/>
  </mx:Canvas>
  <mx:Validator id="reqValidator" source="txtQuestCaption"/>
</mx:Panel>

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