如何在 Flex 树组件中选择子节点？
如果我想检查父节点复选框意味着下面的子节点复选框将选择自动。
这是我的代码：
<fx:Script>
<![CDATA[
private function init():void {
httpTree.send();
}
]]>
</fx:Script>
<fx:Declarations>
<s:HTTPService id="httpTree" url="Assets/World.xml"
resultFormat="e4x" useProxy="false" />
</fx:Declarations>
<mx:Tree dataProvider="{httpTree.lastResult.department}"
id="treeTree" labelField="@name"
itemRenderer="com.ItemRenderForTree" width="160" height="200" />
itemRenderer file
<fx:Script>
<![CDATA[
protected function checkboxSelectHandler(event:Event):void
{
}
]]>
</fx:Script>
<s:states>
<s:State name="normal" />
<s:State name="hovered" />
<s:State name="selected" />
</s:states>
<s:HGroup left="0" right="0" top="0" bottom="0" verticalAlign="middle">
<s:Rect id="indentationSpacer" width="{treeListData.indent}" percentHeight="100" alpha="0">
<s:fill>
<s:SolidColor color="0xFFFFFF" />
</s:fill>
</s:Rect>
<s:Group id="disclosureGroup">
<s:BitmapImage source="{treeListData.disclosureIcon}" visible="{treeListData.hasChildren}" />
</s:Group>
<s:BitmapImage source="{treeListData.icon}" />
<s:CheckBox change="checkboxSelectHandler(event)" />
<s:Label id="labelField" text="{treeListData.label}" paddingTop="2"/>
</s:HGroup>
任何人都可以帮忙，谢谢......
If i want check parent node checkbox means below childerns checkbox will select automatic .
this is my code:
<fx:Script>
<![CDATA[
private function init():void {
httpTree.send();
}
]]>
</fx:Script>
<fx:Declarations>
<s:HTTPService id="httpTree" url="Assets/World.xml"
resultFormat="e4x" useProxy="false" />
</fx:Declarations>
<mx:Tree dataProvider="{httpTree.lastResult.department}"
id="treeTree" labelField="@name"
itemRenderer="com.ItemRenderForTree" width="160" height="200" />
itemRenderer file
<fx:Script>
<![CDATA[
protected function checkboxSelectHandler(event:Event):void
{
}
]]>
</fx:Script>
<s:states>
<s:State name="normal" />
<s:State name="hovered" />
<s:State name="selected" />
</s:states>
<s:HGroup left="0" right="0" top="0" bottom="0" verticalAlign="middle">
<s:Rect id="indentationSpacer" width="{treeListData.indent}" percentHeight="100" alpha="0">
<s:fill>
<s:SolidColor color="0xFFFFFF" />
</s:fill>
</s:Rect>
<s:Group id="disclosureGroup">
<s:BitmapImage source="{treeListData.disclosureIcon}" visible="{treeListData.hasChildren}" />
</s:Group>
<s:BitmapImage source="{treeListData.icon}" />
<s:CheckBox change="checkboxSelectHandler(event)" />
<s:Label id="labelField" text="{treeListData.label}" paddingTop="2"/>
</s:HGroup>
any one can help thanks....
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评论（2）
你正在寻找我一直称之为薛定谔复选框的东西。这是一段相同的代码，包括一个工作演示和 adobe 上的复选框的 PNG 资源。
薛定谔复选框
You're looking for what I've always called a Schrodinger Check Box. Here is a same piece of code, including a working demo and the PNG resources for the checkbox over at adobe.
Schrodinger Check Box
使用树 dataDescriptor 访问单击的父节点的子节点。也许这会有帮助？您的三个数据在数据模型中是否有选定的属性？
Use tree dataDescriptor to access children nodes of clicked parent node. Maybe that could help? Does your three data have a selected property in datamodel?