如何正確地將名稱空間添加到xpath c＃中？

Question

我嘗試了很多不同的方式，但它一直在說：根級數據無效。第1行，位置1. 我的問題是：如何正確添加名稱空間？

如果我從xml中刪除命名空間，它的工作原理是完美的，但我不能這樣做，因爲xml文檔已被其他人創建。

這是我的xml文件：

<?xml version="1.0" encoding="utf-8"?> 
<outputTree xmlns="http://www.ibm.com/software/analytics/spss/xml/oms" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ibm.com/software/analytics/spss/xml/oms http://www.ibm.com/software/analytics/spss/xml/oms/spss-output-1.8.xsd"> 
    <book> 
    <book id="bk101"> 
     <author id="1">Gambardella, Matthew</author> 
     <title>XML Developer's Guide</title> 
     <genre>Computer</genre> 
     <price>44.95</price> 
     <publish_date>2000-10-01</publish_date> 
     <description> An in-depth look at creating applications with XML.</description> 
    </book> 
    <book id="bk102"> 
     <author id="2">Ralls, Kim</author> 
     <title>Midnight Rain</title> 
     <genre>Fantasy</genre> 
     <price>5.95</price> 
     <publish_date>2000-12-16</publish_date> 
     <description> 
     A former architect battles corporate zombies,an evil sorceress, and her own childhood to become 
     queen of the world. 
     </description> 
    </book> 
    </book> 
</outputTree> 

Ç

private void GetXMLData() 
{ 
    try 
    { 
     XmlDocument doc = new XmlDocument(); 
     doc.LoadXml(@"C:\Users\byilmaz\Desktop\SPSS_SITE\g.xml"); 

     XmlNamespaceManager nsmanager = new XmlNamespaceManager(doc.NameTable); 
     nsmanager.AddNamespace("test", "http://www.ibm.com/software/analytics/spss/xml/oms"); 

     XmlNodeList errorNodes = doc.SelectNodes("/test:outputTree/", nsmanager); 
     foreach (XmlNode errorNode in errorNodes) 
     { 
      //string errorCode = errorNode.Attributes["id"].Value; 
      //string errorMessage = errorNode.InnerText; 
     } 

    } 
    catch (Exception err) 
    { 
     throw (err); 
    } 
} 

Answer 1

你應該已經使用Load()方法，而不是LoadXml()從文件加載XML：

doc.Load(@"C:\Users\byilmaz\Desktop\SPSS_SITE\g.xml");