xml

最新推荐文章于 2024-08-12 23:01:19 发布

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最新推荐文章于 2024-08-12 23:01:19 发布

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原文链接：http://www.cnblogs.com/DJYBlog/p/3963164.html

一：如果不想有转意则用CDATA <name><![CDATA[张三<李四>王五<99>]]></name>

  1 #region 通过编程方式实现xml写入
  2             ////1.在内存中构建一个Dom对象
  3             //XmlDocument xmlDoc = new XmlDocument();
  4             //XmlDeclaration xmlDec = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", null);
  5             //xmlDoc.AppendChild(xmlDec);
  6             ////2.为文档增加一个根元素
  7             //XmlElement xmlRoot = xmlDoc.CreateElement("school");
  8             //xmlDoc.AppendChild(xmlRoot);
  9             ////3.为根源素里面增加子元素，接下来将子元素添加到Root
 10             //XmlElement xmlClass = xmlDoc.CreateElement("class");
 11             //XmlAttribute xmlAttr = xmlDoc.CreateAttribute("id");
 12             //xmlAttr.Value = "c01";
 13             //xmlClass.Attributes.Append(xmlAttr);
 14             //xmlRoot.AppendChild(xmlClass);
 15             ////4.class元素创建一个student节点
 16             //XmlElement xmlStudentElement = xmlDoc.CreateElement("student");
 17             //XmlAttribute sttrSid = xmlDoc.CreateAttribute("sid");
 18             //sttrSid.Value = "s001";
 19             //xmlClass.AppendChild(xmlStudentElement);
 20 
 21             ////5.向student节点中怎家一个name节点和age节点
 22             //XmlElement xmlNameElement = xmlDoc.CreateElement("name");
 23             //xmlNameElement.InnerText = "黄林";
 24             //xmlStudentElement.AppendChild(xmlNameElement);
 25 
 26             //XmlElement xmlAgeElement = xmlDoc.CreateElement("age");
 27             //xmlAgeElement.InnerText = "18";
 28             //xmlStudentElement.AppendChild(xmlAgeElement);
 29 
 30             ////end 将Dom对象写入到xml文件中
 31 
 32             //xmlDoc.Save("school.xml");
 33             //MessageBox.Show("ok");
 34             #endregion
 35 
 36             #region 把List集合中的内容写入到一个xml文件中,通过XmlDocument方式写入Xml文件
 37             //List<Person> list = new List<Person>();
 38             //list.Add(new Person() { Name = "黄林", Age = 19, Email = "hl@yahoo.com" });
 39             //list.Add(new Person() { Name = "许正龙", Age = 29, Email = "xzl@yahoo.com" });
 40             //list.Add(new Person() { Name = "何红卫", Age = 39, Email = "hhw@yahoo.com" });
 41             //list.Add(new Person() { Name = "杨硕", Age = 9, Email = "ys@yahoo.com" });
 42             ////1.创建一个Dom对象
 43             //XmlDocument xDoc = new XmlDocument();
 44             ////2.编写文档定义
 45             //XmlDeclaration xmlDec = xDoc.CreateXmlDeclaration("1.0", "utf-8", null);
 46             //xDoc.AppendChild(xmlDec);
 47 
 48             ////3.编写一个根节点
 49             //XmlElement xmlRoot = xDoc.CreateElement("List");
 50             //xDoc.AppendChild(xmlRoot);
 51 
 52             ////4循环Person节点
 53             //for (int i = 0; i < list.Count; i++) {
 54             //    XmlElement xmlPersonElement = xDoc.CreateElement("Person");
 55             //    XmlAttribute xmlAttr = xDoc.CreateAttribute("id");
 56             //    xmlAttr.Value = i.ToString();
 57             //    xmlPersonElement.Attributes.Append(xmlAttr);
 58             //    xmlRoot.AppendChild(xmlPersonElement);
 59 
 60             //    XmlElement xmlNameElement = xDoc.CreateElement("Name");
 61             //    xmlNameElement.InnerText = list[i].Name.ToString();
 62             //    xmlPersonElement.AppendChild(xmlNameElement);
 63 
 64             //    XmlElement xmlAgeElement = xDoc.CreateElement("Age");
 65             //    xmlAgeElement.InnerText = list[i].Age.ToString();
 66             //    xmlPersonElement.AppendChild(xmlAgeElement);
 67 
 68             //    XmlElement xmlEmailElement = xDoc.CreateElement("Email");
 69             //    xmlEmailElement.InnerText = list[i].Email.ToString();
 70             //    xmlPersonElement.AppendChild(xmlEmailElement);
 71             //}
 72             //xDoc.Save("student.xml");
 73             //MessageBox.Show("OK");
 74 
 75             #endregion
 76 
 77 
 78             #region 通过XDocument方式写入Xml文件
 79 
 80             List<Person> list = new List<Person>();
 81             list.Add(new Person() { Name = "黄林", Age = 19, Email = "hl@yahoo.com" });
 82             list.Add(new Person() { Name = "许正龙", Age = 29, Email = "xzl@yahoo.com" });
 83             list.Add(new Person() { Name = "何红卫", Age = 39, Email = "hhw@yahoo.com" });
 84             list.Add(new Person() { Name = "杨硕", Age = 9, Email = "ys@yahoo.com" });
 85 
 86             //1.创建一个Dom对象
 87             XDocument xDoc = new XDocument();
 88             XDeclaration xDec = new XDeclaration("1.0", "utf-8", "no");
 89 
 90             //======================================================
 91             //设置xml的文档定义
 92             xDoc.Declaration = xDec;
 93             //======================================================
 94 
 95 
 96             //2.创建根节点
 97             XElement rootElement = new XElement("List");
 98             xDoc.Add(rootElement);
 99 
100 
101             //3.循环List集合创建Person节点
102             for (int i = 0; i < list.Count; i++) {
103                 //为每个Person对象创建一个Person元素
104                 XElement xElementPerson = new XElement("Person");
105                 xElementPerson.SetAttributeValue("id", (i + 1).ToString());
106 
107                 xElementPerson.SetElementValue("Name", list[i].Name);
108                 xElementPerson.SetElementValue("Age", list[i].Age);
109                 xElementPerson.SetElementValue("Email", list[i].Email);
110                 rootElement.Add(xElementPerson);
111             }
112 
113             //4.保存到文件
114             xDoc.Save("ListNew.xml");
115             MessageBox.Show("ok");
116             #endregion

通过代码写xml

 1 /// <summary>
 2         /// 读取xml
 3         /// </summary>
 4         /// <param name="sender"></param>
 5         /// <param name="e"></param>
 6         private void btnReadXml_Click(object sender, EventArgs e) {
 7 
 8             #region 通过XDocument将xml文件递归加载到Treeview中
 9             ////1.读取xml文件
10             //XDocument document = XDocument.Load("student.xml");
11             ////2.获取节点
12             //XElement rootElement = document.Root;
13             ////3.将xml的根元素加载到TreeView的根节点上
14             //TreeNode rootName = treeView1.Nodes.Add(rootElement.Name.ToString());
15 
16             ////4.递归加载
17             //LoadXmlToTreeView(rootElement, rootName.Nodes);
18             #endregion
19 
20             #region 通过XmlDocument将xml文件递归加载到Treeview中
21             //1加载Xml文件到对象
22             XmlDocument document = new XmlDocument();
23             document.Load("student.xml");
24             //获取根节点
25             XmlElement rootElement = document.DocumentElement;
26             TreeNode rootNode = treeView1.Nodes.Add(rootElement.Name);
27 
28             //实现递归将xml加载到TreeView中
29 
30             LoadToTreeByXmlDocument(rootElement, rootNode.Nodes);
31             #endregion
32         }
33         /// <summary>
34         /// 通过XmlDocument的方式将xml元素递归加载到TreeView上
35         /// </summary>
36         /// <param name="rootElement"></param>
37         /// <param name="treeNodeCollection"></param>
38         private void LoadToTreeByXmlDocument(XmlElement rootElement, TreeNodeCollection treeNodeCollection) {
39             foreach (XmlNode item in rootElement.ChildNodes) {
40                 // 在继续之前需要判断一下当前节点是什么类型的节点
41                 if (item.NodeType==XmlNodeType.Element) {
42                     //如果当前节点是一个元素节点，则把当前节点加载到treeView中
43                     TreeNode node = treeNodeCollection.Add(item.Name);
44                     //递归调用
45 
46                 }
47             }
48         }
49         /// <summary>
50         /// 通过XDocument的方式将xml元素递归加载到TreeView上
51         /// </summary>
52         /// <param name="rootElement"></param>
53         /// <param name="treeNodeCollection"></param>
54         private void LoadXmlToTreeView(XElement rootElement, TreeNodeCollection treeNodeCollection) {
55             //根据根元素获取所有子元素
56             foreach (XElement item in rootElement.Elements()) {
57                 if (item.Elements().Count() == 0) {
58                     //当前节点没有子节点，给当前节点 添加名字和 内容
59                     treeNodeCollection.Add(item.Name.ToString()).Nodes.Add(item.Value);
60 
61                 } else {
62                     TreeNode node = treeNodeCollection.Add(item.Name.ToString());
63                     LoadXmlToTreeView(item, node.Nodes);
64                 }
65 
66             }
67         }