Flex中如何通过dragEnabled, dropEnabled和dragMoveEnabled属性，使Tree中的节点可以被拖动重新排序...

最新推荐文章于 2023-04-04 18:32:32 发布

最新推荐文章于 2023-04-04 18:32:32 发布 · 184 阅读

文章标签：

#Flex #XML #Adobe

本文介绍了一个使用 Flex 和 MXML 编写的简单应用程序实例，该程序通过树形结构展示了一组 XML 数据。每段文本被组织成不同的段落，每个段落包含若干节点，通过垂直滚动策略展示所有内容。

main.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
<mx:XMLid="xmlDP">
<root>
<paralabel="Paragraph 1" isBranch="true">
<nodelabel="Lorem ipsum dolor sit amet, consectetuer adipiscing elit." />
<nodelabel="Cras porttitor nunc a pede." />
<nodelabel="Nulla ac magna non risus accumsan egestas." />
<nodelabel="Aenean pretium porta felis." />
<nodelabel="Sed massa." />
</para>
<paralabel="Paragraph 2" isBranch="true">
<nodelabel="Pellentesque pretium eros id odio tincidunt lobortis." />
<nodelabel="Praesent vitae dolor eget nisl adipiscing pretium." />
<nodelabel="Fusce nonummy dignissim risus." />
<nodelabel="Nunc sodales, lectus vitae nonummy cursus, augue lectus auctor orci, vel aliquet enim neque vel eros." />
<nodelabel="Donec laoreet euismod libero." />
<nodelabel="Etiam ut lectus." />
</para>
<paralabel="Paragraph 3" isBranch="true">
<nodelabel="Maecenas ut nibh eu diam viverra suscipit." />
<nodelabel="Pellentesque auctor, turpis vel lobortis suscipit, neque tortor tristique nibh, venenatis suscipit nisl nisl eget magna." />
<nodelabel="Donec interdum." />
<nodelabel="Praesent diam." />
</para>
<paralabel="Paragraph 4" isBranch="true">
<nodelabel="Proin nulla." />
<nodelabel="Morbi tincidunt, sapien in sollicitudin venenatis, nibh tortor pretium ante, non pharetra urna dolor et libero." />
<nodelabel="In malesuada risus at neque." />
</para>
<paralabel="Paragraph 5" isBranch="true" />
</root>
</mx:XML>
<mx:Treeid="tree"
dataProvider="{xmlDP}"
labelField="@label"
showRoot="false"
verticalScrollPolicy="on"
alternatingItemColors="[#FFFFFF,#EEEEEE]"
showScrollTips="true"
dragEnabled="true"
dropEnabled="true"
dragMoveEnabled="true"
width="300"
rowCount="6"/>
</mx:Application>