aspnet 操作xml

Question

rr.config<?xml version="1.0" encoding="utf-8"?>
<urlrewritingnet rewriteOnlyVirtualUrls="true" contextItemsPrefix="QueryString" defaultPage="index.aspx" defaultProvider="RegEx" xmlns="http://www.urlrewriting.net/schemas/config/2006/07">
  <rewrites>
    <add name="content" virtualUrl="^http\://(.*)/(.*)-(\d+).aspx" rewriteUrlParameter="ExcludeFromClientQueryString" destinationUrl="~/Default.aspx?templet=$2&amp;id=$3&amp;page=$3" rewrite="Domain" ignoreCase="true" />
  </rewrites>
</urlrewritingnet>
    string xmlfile = Server.MapPath("~/Config/rr.config");
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(xmlfile);    //加载文件             XmlNode xmldocSelect = xmlDoc.SelectSingleNode("rewrites"); 为什么 xmldocSelect 是null  就是无法读出节点

Answer 1

XmlNode xmldocSelect = xmlDoc.SelectSingleNode("//
rewrites");  

Answer 2

强大
我都是doc.GetElementsByTagName( "rewrites" )

Answer 3

xmlDoc.SelectSingleNode("//urlrewritingnet/rewrites");http://msdn.microsoft.com/en-us/library/ms757846(VS.85).aspx

Answer 4

确定rr.config里有rewrites节点？没拼错吧？

Answer 5

是namespace的问题．
 XmlNamespaceManager   xnm   =   new   XmlNamespaceManager(xmlDoc.NameTable);   
            xnm.AddNamespace("xx","http://www.urlrewriting.net/schemas/config/2006/07");   
            XmlNode xmldocSelect = xmlDoc.SelectSingleNode("//xx:rewrites",xnm);
 

Answer 6

你的xml不完整，最层再加个节点。不信你try catch下

Answer 7

XmlNode node= doc.SelectSingleNode("//urlrewritingnet/rewrites");
 if (node!= null)
   {}

Answer 8

// 所有路径以"//"后指定的子路径结尾的元素 
/ 指示节点路径 
//B[@id] 所有具有属性id的B元素 

Answer 9

XmlNode xmldocSelect = xmlDoc.DocumentElement.SelectSingleNode("rewrites");