c# 如何读取xml节点中的属性（转）

using System; 
using System.Collections; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Web; 
using System.Web.SessionState; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.HtmlControls; 
using System.Xml; 
private XmlDocument xmlDoc; 

//load xml file 
private void LoadXml() 
{ 
xmlDoc=new XmlDocument(); 
xmlDoc.Load(Server.MapPath("User.xml")); 
} 


//添加节点 
private void AddElement() 
{ 

LoadXml(); 

XmlNode xmldocSelect=xmlDoc.SelectSingleNode("user"); 

XmlElement el=xmlDoc.CreateElement("person"); //添加person节点 
el.SetAttribute("name","风云"); //添加person节点的属性"name" 
el.SetAttribute("sex","女"); //添加person节点的属性 "sex" 
el.SetAttribute("age","25"); //添加person节点的属性 "age" 

XmlElement xesub1=xmlDoc.CreateElement("pass"); //添加person节点的里的节点 
xesub1.InnerText="123";//设置文本节点 
el.AppendChild(xesub1); 
XmlElement xesub2=xmlDoc.CreateElement("Address"); 
xesub2.InnerText="昆明";//设置文本节点 
el.AppendChild(xesub2); 

xmldocSelect.AppendChild(el); 
xmlDoc.Save(Server.MapPath("user.xml")); 


} 




//修改节点 
private void UpdateElement() 
{ 
LoadXml(); 
XmlNodeList nodeList=xmlDoc.SelectSingleNode("user").ChildNodes;//获取bookstore节点的所有子节点 
foreach(XmlNode xn in nodeList)//遍历所有子节点 
{ 
XmlElement xe=(XmlElement)xn;//将子节点类型转换为XmlElement类型 
if(xe.GetAttribute("name")=="风云")//如果name属性值为“风云” 
{ 
xe.SetAttribute("name","发明"); 


//如果下面有子节点在下走 
XmlNodeList nls=xe.ChildNodes;//继续获取xe子节点的所有子节点 
foreach(XmlNode xn1 in nls)//遍历 
{ 
XmlElement xe2=(XmlElement)xn1;//转换类型 
if(xe2.Name=="pass")//如果找到 
{ 
xe2.InnerText="66666";//则修改 
break; 

} 
} 

break; 
} 
} 
xmlDoc.Save(Server.MapPath("user.xml"));//保存 
} 


//删出节点 
private void deleteNode() 
{ 

LoadXml(); 
XmlNodeList xnl=xmlDoc.SelectSingleNode("user").ChildNodes; 

foreach(XmlNode xn in xnl) 
{ 
XmlElement xe=(XmlElement)xn; 

if(xe.GetAttribute("name")=="发明") 
{ 
//xe.RemoveAttribute("name");//删除name属性 
xe.RemoveAll();//删除该节点的全部内容 


break; 
} 

} 
xmlDoc.Save(Server.MapPath("user.xml"));//保存 
} 

private void showIt() 
{ 
LoadXml(); 
XmlNode xn=xmlDoc.SelectSingleNode("user"); 

XmlNodeList xnl=xn.ChildNodes; 

foreach(XmlNode xnf in xnl) 
{ 
XmlElement xe=(XmlElement)xnf; 
// Console.WriteLine(xe.GetAttribute("name"));//显示属性值 
// Console.WriteLine(xe.GetAttribute("sex")); 
// 
// XmlNodeList xnf1=xe.ChildNodes; 
// foreach(XmlNode xn2 in xnf1) 
// { 
// Console.WriteLine(xn2.InnerText);//显示子节点点文本 
// } 
}

示例：

代码：

public Dictionary<string, string> getWelcomeRead()
        {
            Dictionary<string, string> dic = new Dictionary<string, string>();
            try
            {
                XmlDocument xmldoc = new XmlDocument();
                xmldoc.Load("AlienConfig.xml");
                XmlNodeList xmlList = xmldoc.SelectSingleNode("Welcome").ChildNodes;

                foreach (XmlNode node in xmlList)
                {
                    XmlElement xe = (XmlElement)node;
                    if (xe.Name == "IPAddress")
                    {
                        dic.Add(xe.Name, xe.InnerText);
                    }
                    if (xe.Name == "Iport")
                    {
                        dic.Add(xe.Name, xe.InnerText);
                    }
                    if (xe.Name == "EndTime")
                    {
                        dic.Add(xe.Name, xe.InnerText);
                    }
                    if (xe.Name == "RateTime")  //type
                    {
                        dic.Add(xe.Name, xe.InnerText);

                        string strType = xe.GetAttribute("ratetype") != "" ? xe.GetAttribute("ratetype") : "";
                        dic.Add("ratetype", strType);
                    }
                }
            }
            catch (Exception ex)
            {
                dic = new Dictionary<string, string>();
                dic.Add("Error", ex.Message);
            }

            return dic;
        }