1 <?xml version="1.0" encoding="utf-8"?>
 2  <turba>
 3 <tongxun txid="0" txnr="示范店1" />
 4 <tongxun txid="1" txnr="sfd" />
 5 <tongxun txid="2" txnr="" />
 6 <tongxun txid="3" txnr="" />
 7 <tongxun txid="4" txnr="" />
 8 <tongxun txid="5" txnr="" />
 9 <tongxun txid="6" txnr="" />
10 <tongxun txid="7" txnr="" />
11 <tongxun txid="8" txnr="" />
12 <tongxun txid="9" txnr="" />
13 </turba>

 1       #region 循环读取XML里的内容
 2         /// <summary>   
 3         /// 循环读取XML里的内容   
 4         /// Node.HasChildNodes 判断是否有节点
 5         /// </summary> 
 6         private void XMLopertator(string types)
 7         {
 8             string lujin = Application["lujin"] + "/XMLTest/XMLturba.xml";
 9             XmlDocument xmlDoc = new XmlDocument();
10             xmlDoc.Load(Server.MapPath(lujin));
11             XmlNodeList Node_List = xmlDoc.SelectSingleNode("turba").ChildNodes; //获取turba节点的所有子节点
12             foreach (XmlNode Node in Node_List)
13             {
14                 XmlElement xnl = (XmlElement)Node;
15                 if (xnl.GetAttribute("txid") == types)
16                 {
17                     TelList.SelectedValue = types;//下拉框控件赋予默认值
18                     if (xnl.GetAttribute("txnr") != "" || xnl.GetAttribute("txnr") != null)
19                     {
20                         txtel.Text = xnl.GetAttribute("txnr");//XmlElement类中GetAttribute方法取属性值
21                     }
22                     else
23                     {
24                         txtel.Text = "";
25                     }
26                     break;//找到跳出循环
27                 }
28             }
29         }
30         #endregion 循环读取XML里的内容
31 
32         #region XML文件操作添加节点
33         /// <summary>
34         /// <param name="MainNode">当前节点</param>
35         /// <param name="node">新节点</param>
36         /// <param name="content">新节点值</param>
37         /// </summary>
38         private void XMLAddElement(string types, string txtstr)
39         {
40             string lujin = Application["lujin"] + "/XMLTest/XMLturba.xml";
41             XmlDocument xmlDoc = new XmlDocument();
42             xmlDoc.Load(Server.MapPath(lujin));
43             /*
44             //创建根节点
45             XmlElement MyCustomers = xmlDoc.CreateElement("peioinfo");
46             xmlDoc.AppendChild(MyCustomers);
47             */
48             XmlNode MainNode = xmlDoc.SelectSingleNode("turba");
49             //添加子节点
50             XmlElement tongxun = xmlDoc.CreateElement("tongxun"); //添加tongxun子节点及属性
51             tongxun.SetAttribute("txid", types);
52             tongxun.SetAttribute("txnr", txtstr);
53             MainNode.AppendChild(tongxun);
54             //保存XML文档
55             xmlDoc.Save(Server.MapPath(lujin));
56         }
57         #endregion XML文件操作添加节点
58 
59         #region XML文件操作修改节点
60         private void XMLEditElement(string types, string txtstr)
61         {
62             string lujin = Application["lujin"] + "/XMLTest/XMLturba.xml";
63             XmlDocument xmlDoc = new XmlDocument();
64             xmlDoc.Load(Server.MapPath(lujin));
65 
66             XmlNodeList xnl = xmlDoc.SelectSingleNode("turba").ChildNodes; 
67             foreach (XmlNode xn in xnl)
68             {
69                 XmlElement xe = (XmlElement)xn;
70                 if (xe.GetAttribute("txid") == types)//如果节点存在则改写
71                 {
72                     xe.SetAttribute("txnr", txtstr);
73                     break;
74                 }
75             }
76             xmlDoc.Save(Server.MapPath(lujin));
77         }
78         #endregion XML文件操作添加节点
79 
80         #region XML文件操作删除节点
81         private void XMLDelElement(string types)
82         {
83             string lujin = Application["lujin"] + "/XMLTest/XMLturba.xml";
84             XmlDocument xmlDoc = new XmlDocument();
85             xmlDoc.Load(Server.MapPath(lujin));
86 
87             XmlNodeList xnl = xmlDoc.SelectSingleNode("turba").ChildNodes;
88             foreach (XmlNode xn in xnl)
89             {
90                 XmlElement xe = (XmlElement)xn;
91                 if (xe.GetAttribute("txid") == types)//如果节点存在则改写
92                 {
93                     xe.RemoveAll();
94                     break;
95                 }
96             }
97             xmlDoc.Save(Server.MapPath(lujin));
98         }
99         #endregion XML文件操作删除节点