Flex中通过将verticalScrollPolicy属性设为mx.core.ScrollPolicy类的一个常量实现TextArea控件滚动条的显示与否的例子
By Minidxer | August 29, 2008
接下来的例子演示了Flex中通过将verticalScrollPolicy属性设为mx.core.ScrollPolicy类的一个常量，实现TextArea控件滚动条的显示与否。
让我们先来看一下Demo（可以右键View Source或点击这里察看源代码）：
下面是完整代码(或点击这里察看)：
Download: main.mxml
- <?xml version="1.0" encoding="utf-8"?>
- <mx:Application name="TextArea_verticalScrollPolicy_test"
- xmlns:mx="http://www.adobe.com/2006/mxml"
- layout="vertical"
- verticalAlign="middle"
- backgroundColor="white">
- <mx:Script>
- <![CDATA[
- import mx.core.ScrollPolicy;
- ]]>
- </mx:Script>
- <mx:String id="lorem" source="data/lorem.html" />
- <mx:ApplicationControlBar dock="true">
- <mx:Form styleName="plain">
- <mx:FormItem label="verticalScrollPolicy:">
- <mx:ComboBox id="comboBox"
- dataProvider="{[ScrollPolicy.AUTO,
- ScrollPolicy.ON,
- ScrollPolicy.OFF]}" />
- </mx:FormItem>
- </mx:Form>
- <mx:Spacer width="100%" />
- <mx:Button label="Lorem Ipsum me!"
- click="textArea.htmlText = lorem;" />
- <mx:Button label="Clear text"
- click="textArea.htmlText = '';" />
- </mx:ApplicationControlBar>
- <mx:TextArea id="textArea"
- verticalScrollPolicy="{comboBox.selectedItem}"
- textAlign="justify"
- width="100%"
- height="100%" />
- </mx:Application>
代码：Peter deHaan 翻译/整理/编译：中文Flex例子
Topics:
Flex |
1 Comment » |
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Tags: ScrollPolicy, TextArea, verticalScrollPolicy
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