是否有可能在Javascript xpath中獲得父節點屬性的值

我的代碼如下運行良好。它在我的xml文件中搜索特定分支（'str'分支）的所有「outcome_text」節點，然後將文本寫入表中。問題是，我真的很想獲得父節點屬性的值（整體id值）。這樣，我的表格行將是兩列：OVerall ID和結果。我可以做到這一點在VB/asp xpath中沒有問題，但試圖爲移動設備製作客戶端版本。這裏是XML的一個片段：是否有可能在Javascript xpath中獲得父節點屬性的值

<curriculum> 
<strand id="Dance"> 
<strand_text>Dance</strand_text> 
<overalls> 
    <overall id="A1"> 
    <overall_text>Creating and Presenting: apply the creative process (see pages 19-22) to the composition of simple dance phrases, using the elements of dance to communicate feelings and ideas</overall_text> 
    <specifics> 
     <specific></specific> 
    </specifics> 
    </overall> 
    <overall id="A2"> 
    <overall_text>Reflecting, Responding, and Analysing: apply the critical analysis process (see pages 23-28) to communicate their feelings, ideas, and understandings in response to a variety of dance pieces and experiences</overall_text> 
    <specifics> 
     <specific></specific> 
    </specifics> 
    </overall> 
</overalls> 
</strand> 
<strand id="visual"> . . . </strand> 
</curriculum>

和這裏是代碼：（忽略IE比特 - 這將是在Android和僅IOS）

<script> 

function popout() { 
    var gr = gradedd.options[gradedd.selectedIndex].value 
    var sb = subdd.options[subdd.selectedIndex].value 
    var str = stranddd.options[stranddd.selectedIndex].value 
    xml = loadXMLDoc("resources/ont/grade_" + gr + "_" + sb + ".xml"); 

     path = "/curriculum/strand[@id='" + str + "']/overalls/overall/overall_text" 

     // code for IE 
     if (window.ActiveXObject) { 
      var nodes = xml.selectNodes(path); 

      for (i = 0; i < nodes.length; i++) { 
       // ddlist[0] = nodes[i].childNodes[0].nodeValue; ignore 
       // dropdown[dropdown.length] = new Option(ddlist[i], ddlist[i]); ignore 

      } 
     } 
      // code for Mozilla, Firefox, Opera, etc. 

      else if (document.implementation && document.implementation.createDocument) { 
      var nodes = xml.evaluate(path, xml, null, XPathResult.ANY_TYPE, null); 
      var result = nodes.iterateNext(); 
      var txt = "<table border='1'><tr><th>Strand</th><th>OVERALL</th></tr>"; 

      while (result) { 
       ind = str; // but would like the value of outcome node attribute 

       var over = result.childNodes[0].nodeValue 
       txt = txt + "<tr><td>" + ind + "</td><td>" + over + "</td></tr>" 
       result = nodes.iterateNext(); 
      } 
      } 
     txt = txt + "</table>" 
     document.getElementById('outtable').innerHTML = txt; 
}

來源

2013-12-10 Cory

請注意，IE10 +沒有本機XPath支持。 http://stackoverflow.com/questions/13521554/xpath-in-internet-explorer-10-gone。您可能想要使用該帖子中提到的庫簡化您的整個方法。 – Tomalak

似乎對我來說就像這樣：

ind = result.parentNode.getAttribute("id")

應該工作。

來源

2013-12-10 09:23:05 Louis

OMG，當然有效！（就像vb代碼一樣）。這是我嘗試的第一件事，但我在結尾處有「result.parentNode [0] .getAttribute（」id「）和.value，我嘗試了各種變體（.nodesValue等等）。我在js xpath中需要[0]。我現在應該把頭放在沙子裏。 – Cory

是否有可能在Javascript xpath中獲得父節點屬性的值

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