我如何通過屬性訪問兒童節點？

Question

我想創建一個圖片庫：

<card> 
<product catalog="Thread Works"> 
    <name>AK E001</name>  
    <price>45</price> 
    <path>assets\cards\AK_E001.jpg</path> 
</product> 

<product catalog="Paper Work"> 
    <name>AK E001</name> 
    <price>45</price> 
    <path>assets\cards\AK_PP003.jpg</path> 
</product> 

<product catalog="Thread Works"> 
    <name>AK E002</name>  
    <price>50</price> 
    <path>assets\cards\AK_E002.jpg</path> 
</product> 

我可以訪問屬性，但如果我選擇「主題作品」我只希望有孩子的節點訪問 <product catalog="Thread Works">，爲的AddItem數組收集任何幫助感謝

Answer 1

<?xml version="1.0" encoding="utf-8"?> 
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
         xmlns:s="library://ns.adobe.com/flex/spark" 
         xmlns:mx="library://ns.adobe.com/flex/mx"> 
    <fx:Script> 
     <![CDATA[ 
      import mx.collections.ArrayCollection; 
      import mx.events.FlexEvent; 
      private var mainXML:XML = <card> 
             <product catalog="Thread Works"> 
              <name>AK E001</name>  
              <price>45</price> 
              <path>assets\cards\AK_E001.jpg</path> 
             </product> 

             <product catalog="Paper Work"> 
              <name>AK E001</name> 
              <price>45</price> 
              <path>assets\cards\AK_PP003.jpg</path> 
             </product> 

             <product catalog="Thread Works"> 
              <name>AK E002</name>  
              <price>50</price> 
              <path>assets\cards\AK_E002.jpg</path> 
             </product> 
             </card>; 

      protected function fetchHandler(event:MouseEvent):void 
      { 
       var productAC:ArrayCollection = new ArrayCollection(); 
       var productList:XMLList = mainXML.product.(@catalog == attributeNameTxt.text); 
       for each(var item:XML in productList) 
       { 
        productAC.addItem({name:String(item.name[0]), 
         price:String(item.price[0]), 
         path:String(item.path[0])}); 
       } 
       trace(productAC); 
      } 

     ]]> 
    </fx:Script> 
    <s:layout> 
     <s:HorizontalLayout/> 
    </s:layout> 
    <s:TextInput id="attributeNameTxt" text="Thread Works"/> 
    <s:Button click="fetchHandler(event);"/> 
</s:WindowedApplication> 

IMPORTANT CODE : 
================= 
mainXML.product.(@catalog == "Thread Works") 

Answer 2

function onXmlLoaded (e:Event):void 
{ 
    xml = XML(e.target.data); 
    var xmlLength:Number = xml.product.length(); 
    for(var i:uint = 0; i<xmlLength; i++) 
    { 
      dataContainer.push({ 
      catalog : xml.product.@catalog, 
      name : xml..name, 
      price : xml..price, 
      path : xml..path 
     }); 
    } 
    for(i=0;i<dataContainer.length;i++) 
    { 
      if(dataContainer[i].catalog[0]== "your String"){ 
       showName(); 
      } 
    } 
} 

Answer 3

參考http://livedocs.adobe.com/flex/3/html/help.html?content=13_Working_with_XML_08.html

你的情況：

var x：XML; //用你的數據填充Xml

var threadWorks：XML = x.product。（@ catalog ==「Thread Works」）;編輯： 警告：不要忘了。產品和@catalog之間