Adobe AIR的 - 添加上下文菜单上单击树节点的权 [英] Adobe air - add context menu on right click of tree node

问题描述

我使用的Adobe AIR的创建一个桌面应用程序。在该申请中我有一棵树，我想添加菜单节点时是正确的点击。我跟他们说了弯曲的树，但没有工作的方式。

I am using Adobe Air to create a desktop application. In that application I have a tree and i want to add menu to a node when it right clicked. I followed the way they are saying for flex tree, but not working.

任何操作方法？

〜Umesh制作

推荐答案

我不完全相信你的问题是什么，因为你不说是否没有编制，没有显示器或给了一个运行时错误等，所以我把一个MXML来证明它。在code主要是从树和菜单的例子拼凑起来的。请参考文档了解更多信息。

I am not exactly sure what your problem is, since you don't say whether it did not compile, did not have display or gave a runtime error etc, so I put together a mxml to demonstrate it. The code is mostly cobbled together from the Tree and Menu examples. Please refer to documentation for more details.

<?xml version="1.0" encoding="utf-8"?><mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
	<![CDATA[
		import mx.collections.ArrayCollection;
		import mx.controls.Menu;
		[Bindable]
        public var selectedNode:XML;

        // Event handler for the Tree control change event.
        public function treeChanged(event:Event):void {
            selectedNode=mx.controls.Tree(event.target).selectedItem as XML;
        }

        private var prevMenu:Menu = null

        public function showMenu(event:MouseEvent):void
        {
            if(prevMenu != null)
            	prevMenu.hide()
            var menu:Menu = Menu.createMenu(null, menuData, false);
            menu.labelField="@label"
            menu.show(event.stageX, event.stageY)
            prevMenu = menu
        }

	]]>
</mx:Script>
<mx:XML id="menuData">
    <root>
        <menuitem label="copy" eventName="copy"/>
        <menuitem label="paste" eventName="paste"/>
    </root>
</mx:XML>
<mx:XMLList id="treeData">
    <node label="Mail Box">
        <node label="Inbox">
            <node label="Marketing"/>
            <node label="Product Management"/>
            <node label="Personal"/>
        </node>
        <node label="Outbox">
            <node label="Professional"/>
            <node label="Personal"/>
        </node>
        <node label="Spam"/>
        <node label="Sent"/>
    </node>    
</mx:XMLList>
<mx:Panel title="Tree Control Example" height="75%" width="75%" 
    paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">

    <mx:Label width="100%" color="blue" 
        text="Select a node in the Tree control."/>

    <mx:HDividedBox width="100%" height="100%">
        <mx:Tree id="myTree" width="50%" height="100%" labelField="@label"
            showRoot="false" dataProvider="{treeData}" change="treeChanged(event)"
            rightClick="showMenu(event)"/>
        <mx:TextArea height="100%" width="50%"
            text="Selected Item: {selectedNode.@label}"/>
    </mx:HDividedBox>

</mx:Panel></mx:WindowedApplication>

这篇关于Adobe AIR的 - 添加上下文菜单上单击树节点的权的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！