blocks|key|2053980|text|您是否尝试过将List的contextMenu属性设置为您的上下文菜单？FlexExamples为DataGrid组件发布了一个similar+example。List不应该有太大的不同。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2053981|大致是这样的：|2053982|<?xml+version="1.0"+encoding="utf-8"?>

<mx:Application+xmlns:mx="http://www.adobe.com/2006/mxml"
++++++++layout="vertical"
++++++++verticalAlign="middle"
++++++++backgroundColor="white"
++++++++creationComplete="init()">

++++<mx:Script>
++++++++<![CDATA[
++++++++++++import+mx.controls.Alert;

++++++++++++[Bindable]
++++++++++++private+var+cm:ContextMenu;

++++++++++++private+var+alert:Alert;

++++++++++++private+function+init():void+{
++++++++++++++++var+cmi:ContextMenuItem+=+new+ContextMenuItem("View+item...",+true);
++++++++++++++++cmi.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT,+contextMenuItem_menuItemSelect);

++++++++++++++++cm+=+new+ContextMenu();
++++++++++++++++cm.hideBuiltInItems();
++++++++++++++++cm.customItems+=+[cmi];
++++++++++++++++cm.addEventListener(ContextMenuEvent.MENU_SELECT,+contextMenu_menuSelect);
++++++++++++}

++++++++++++private+function+contextMenu_menuSelect(evt:ContextMenuEvent):void+{
++++++++++++++++dataGrid.selectedIndex+=+lastRollOverIndex;
++++++++++++}

++++++++++++private+function+contextMenuItem_menuItemSelect(evt:ContextMenuEvent):void+{
++++++++++++++++var+obj:Object+=+dataGrid.selectedItem;
++++++++++++++++alert+=+Alert.show("Property+A:+"+%2B+obj.@propertyA+%2B+"\\n"+%2B+"Property+B:+"+%2B+obj.@propertyB,+obj.@label,+Alert.OK);
++++++++++++}
++++++++]]>
++++</mx:Script>

++++<mx:XML+id="itemsXML">
++++++++<items>
++++++++++++<item+label="Item+1"+data="i001"+propertyA="Item+1.A"+propertyB="Item+1.B"+/>
++++++++++++<item+label="Item+2"+data="i002"+propertyA="Item+2.A"+propertyB="Item+2.B"+/>
++++++++++++<item+label="Item+3"+data="i003"+propertyA="Item+3.A"+propertyB="Item+3.B"+/>
++++++++++++<item+label="Item+4"+data="i004"+propertyA="Item+4.A"+propertyB="Item+4.B"+/>
++++++++++++<item+label="Item+5"+data="i005"+propertyA="Item+5.A"+propertyB="Item+5.B"+/>
++++++++++++<item+label="Item+6"+data="i006"+propertyA="Item+6.A"+propertyB="Item+6.B"+/>
++++++++++++<item+label="Item+7"+data="i007"+propertyA="Item+7.A"+propertyB="Item+7.B"+/>
++++++++++++<item+label="Item+8"+data="i008"+propertyA="Item+8.A"+propertyB="Item+8.B"+/>
++++++++</items>
++++</mx:XML>

++++<mx:Number+id="lastRollOverIndex"+/>

++++<mx:DataGrid+id="dataGrid"
++++++++++++width="400"
++++++++++++dataProvider="{itemsXML.item}"
+++++++++++++contextMenu="{cm}"
+++++++++++++itemRollOver="lastRollOverIndex+=+event.rowIndex">
++++++++<mx:columns>
++++++++++++<mx:DataGridColumn+id="labelCol"
++++++++++++++++++++dataField="@label"
++++++++++++++++++++headerText="Label:"+/>

++++++++++++<mx:DataGridColumn+id="propACol"
++++++++++++++++++++dataField="@propertyA"
++++++++++++++++++++headerText="Property+A:"+/>

++++++++++++<mx:DataGridColumn+id="propBCol"
++++++++++++++++++++dataField="@propertyB"
++++++++++++++++++++headerText="Property+B:"+/>
++++++++</mx:columns>
++++</mx:DataGrid>

++++<mx:Label+text="{dataGrid.selectedItem.@label}"+/>

</mx:Application>|code-block|syntax|javascript|2053983|entityMap|0|LINK|mutability|MUTABLE|url|http://blog.flexexamples.com/2007/08/20/using-a-custom-context-menu-with-the-flex-datagrid-control/^0|7|4|C|B|1D|8|28|4|1S|F|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Have you tried setting the <code>contextMenu</code> property of the <code>List</code> to you context menu? FlexExamples has a <a href="http://blog.flexexamples.com/2007/08/20/using-a-custom-context-menu-with-the-flex-datagrid-control/" rel="nofollow">similar example</a> posted for the <code>DataGrid</code> component. A <code>List</code> shouldn't be too different.

Something along these lines:

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;!-- http://blog.flexexamples.com/2007/08/20/using-a-custom-context-menu-with-the-flex-datagrid-control/ --&gt;
&lt;mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
 layout="vertical"
 verticalAlign="middle"
 backgroundColor="white"
 creationComplete="init()"&gt;

 &lt;mx:Script&gt;
 &lt;![CDATA[
 import mx.controls.Alert;

 [Bindable]
 private var cm:ContextMenu;

 private var alert:Alert;

 private function init():void {
 var cmi:ContextMenuItem = new ContextMenuItem("View item...", true);
 cmi.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, contextMenuItem_menuItemSelect);

 cm = new ContextMenu();
 cm.hideBuiltInItems();
 cm.customItems = [cmi];
 cm.addEventListener(ContextMenuEvent.MENU_SELECT, contextMenu_menuSelect);
 }

 private function contextMenu_menuSelect(evt:ContextMenuEvent):void {
 dataGrid.selectedIndex = lastRollOverIndex;
 }

 private function contextMenuItem_menuItemSelect(evt:ContextMenuEvent):void {
 var obj:Object = dataGrid.selectedItem;
 alert = Alert.show("Property A: " + obj.@propertyA + "\\n" + "Property B: " + obj.@propertyB, obj.@label, Alert.OK);
 }
 ]]&gt;
 &lt;/mx:Script&gt;

 &lt;mx:XML id="itemsXML"&gt;
 &lt;items&gt;
 &lt;item label="Item 1" data="i001" propertyA="Item 1.A" propertyB="Item 1.B" /&gt;
 &lt;item label="Item 2" data="i002" propertyA="Item 2.A" propertyB="Item 2.B" /&gt;
 &lt;item label="Item 3" data="i003" propertyA="Item 3.A" propertyB="Item 3.B" /&gt;
 &lt;item label="Item 4" data="i004" propertyA="Item 4.A" propertyB="Item 4.B" /&gt;
 &lt;item label="Item 5" data="i005" propertyA="Item 5.A" propertyB="Item 5.B" /&gt;
 &lt;item label="Item 6" data="i006" propertyA="Item 6.A" propertyB="Item 6.B" /&gt;
 &lt;item label="Item 7" data="i007" propertyA="Item 7.A" propertyB="Item 7.B" /&gt;
 &lt;item label="Item 8" data="i008" propertyA="Item 8.A" propertyB="Item 8.B" /&gt;
 &lt;/items&gt;
 &lt;/mx:XML&gt;

 &lt;mx:Number id="lastRollOverIndex" /&gt;

 &lt;mx:DataGrid id="dataGrid"
 width="400"
 dataProvider="{itemsXML.item}"
 contextMenu="{cm}"
 itemRollOver="lastRollOverIndex = event.rowIndex"&gt;
 &lt;mx:columns&gt;
 &lt;mx:DataGridColumn id="labelCol"
 dataField="@label"
 headerText="Label:" /&gt;

 &lt;mx:DataGridColumn id="propACol"
 dataField="@propertyA"
 headerText="Property A:" /&gt;

 &lt;mx:DataGridColumn id="propBCol"
 dataField="@propertyB"
 headerText="Property B:" /&gt;
 &lt;/mx:columns&gt;
 &lt;/mx:DataGrid&gt;

 &lt;mx:Label text="{dataGrid.selectedItem.@label}" /&gt;

&lt;/mx:Application&gt;
</code></pre>

blocks|key|5074596|text|我找到了问题/解决方案。如果有Vboxes或Tab+Navigator，则不能使用上下文菜单。这是疯狂的，因为这意味着我不能做适当的相对布局或像样的可变宽度设计。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5074597|引用自：http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/ui/ContextMenu.html|offset|length|5074598|例如，如果DataGrid控件是TabNavigator或VBox容器的子级，则DataGrid控件不能有自己的上下文菜单。|5074599|entityMap|0|LINK|mutability|MUTABLE|url|http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/ui/ContextMenu.html^0|0|4|2K|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

I found the problem/solution. You cant use context menus if there are Vboxes or Tab Navigators. Which is insane because it means I cant do relative layout properly or decent variable width design.

Quoted from: <a href="http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/ui/ContextMenu.html" rel="nofollow">http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/ui/ContextMenu.html</a>

For example, if a DataGrid control is a child of a TabNavigator or VBox container, the DataGrid control cannot have its own context menu.

I am trying to use ContextMenu() to display context menus in Flex 4.

Full Render code here <a href="http://pastebin.com/Kx8tJ1cY" rel="nofollow">http://pastebin.com/Kx8tJ1cY</a>

The problem is that the context menu does not change when I add items to it.

Can anyone show me how to add a custom right click menu to a List box in flex (without using external JS, just using ContextMenu as Adobe intended.

Please and Thank you
Craig

Flex4 ContextMenu() not showing added Items

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试使用ContextMenu()在Flex4中显示上下文菜单。这里有完整的渲染代码问题是，当我向其中添加项目时，上下文菜单不会更改。谁能告诉我如何添加一个自定义右键菜单到一个列表框在flex (不使用外部JS，只是使用ContextMenu作为奥多比的预期。谢谢你，克雷格

问Flex4 ContextMenu()未显示添加的项目
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