操作XML--C#（转）
1 using System; 2 using System.Collections.Generic; 3 using System.Text; 4 using System.Xml; 5 using System.Data; 6 7 namespace operate_xml 8 { 9 class operate_xml1 10 { 11 public XmlDocument myXmlDocument; 12 13 /// <summary> 14 /// 带参构造函数 15 /// </summary> 16 /// <param name="xml_name">Xml的路径</param> 17 public operate_xml1(string xml_name) 18 { 19 myXmlDocument = new XmlDocument(); 20 myXmlDocument.Load(xml_name); 21 } 22 /// <summary> 23 /// 更新节点 24 /// </summary> 25 /// <param name="xml_name"></param> 26 /// <param name="name"></param> 27 /// <param name="value"></param> 28 /// <param name="weapon"></param> 29 /// <returns></returns> 30 public bool updata_xml(string xml_name,string name,string value,string weapon) 31 { 32 bool isSuccess = false; 33 XmlNode node; 34 35 node = myXmlDocument.DocumentElement; //获取XML文档的根 36 try 37 { 38 foreach (XmlNode node1 in node.ChildNodes) 39 foreach (XmlNode node2 in node1.ChildNodes) 40 { 41 if (node2.InnerText == name) 42 { 43 node2.NextSibling.InnerText = value; //获取下一个节点 44 node2.NextSibling.NextSibling.InnerText = weapon; //获取下一个节点 45 isSuccess = true; 46 } 47 } 48 myXmlDocument.Save(xml_name); 49 50 } 51 catch (Exception ex) 52 { 53 } 54 return isSuccess; 55 } 56 /// <summary> 57 /// 添加节点 58 /// </summary> 59 /// <param name="xml_name"></param> 60 /// <param name="name"></param> 61 /// <param name="power"></param> 62 /// <param name="weapon"></param> 63 /// <returns></returns> 64 public bool CreatNode(string xml_name,string name,string power,string weapon) 65 { 66 bool isSuccess = false; 67 XmlNode node; 68 node = myXmlDocument.DocumentElement; 69 try 70 { 71 XmlElement subElement = myXmlDocument.createElement_x("body"); 72 73 74 XmlElement subElement1 = myXmlDocument.createElement_x("name"); 75 subElement1.InnerText = name; 76 XmlElement subElement2 = myXmlDocument.createElement_x("power"); 77 subElement2.InnerText = power; 78 XmlElement subElement3 = myXmlDocument.createElement_x("weapon"); 79 subElement3.InnerText = weapon; 80 81 subElement.AppendChild(subElement1); 82 subElement.AppendChild(subElement2); 83 subElement.AppendChild(subElement3); 84 85 node.AppendChild(subElement); 86 myXmlDocument.Save(xml_name); 87 88 isSuccess = true; 89 } 90 catch (Exception ex) 91 { } 92 return isSuccess; 93 } 94 /// <summary> 95 /// 删除节点，第一种方法 96 /// </summary> 97 /// <param name="xml_name"></param> 98 /// <param name="name"></param> 99 /// <returns></returns> 100 public bool DeleteNode(string xml_name, string name) 101 { 102 bool isSuccess = false; 103 XmlNode node; 104 node = myXmlDocument.DocumentElement; 105 try 106 { 107 foreach (XmlNode node1 in node.ChildNodes) 108 foreach (XmlNode node2 in node1.ChildNodes) 109 if (node2.InnerText == name) 110 node2.ParentNode.RemoveAll(); 111 myXmlDocument.Save(xml_name); //记得要保存 112 isSuccess = true; 113 } 114 catch (Exception ex) 115 { } 116 return isSuccess; 117 } 118 /// <summary> 119 /// 删除节点，第二种方法 120 /// </summary> 121 /// <param name="xml_name"></param> 122 /// <param name="name"></param> 123 /// <returns></returns> 124 public bool DeleteNode1(string xml_name, string name) 125 { 126 bool isSuccess = false; 127 XmlNode node1; 128 XmlNodeList nodelist = myXmlDocument.SelectNodes("histroy/body/name"); //选择所有匹配name的节点 129 foreach (XmlNode node in nodelist) 130 { 131 if (node.InnerText == name) 132 { 133 node1 = node.ParentNode; 134 node1.ParentNode.RemoveChild(node1); 135 isSuccess = true; 136 } 137 } 138 myXmlDocument.Save(xml_name); 139 return isSuccess; 140 } 141 /// <summary> 142 /// 查询人物 143 /// </summary> 144 /// <param name="name"></param> 145 /// <returns></returns> 146 public XmlNode getxmlnode(string name) 147 { 148 XmlNode xmlNode=null; 149 XmlNodeList nodelist = myXmlDocument.SelectNodes("//histroy//body//name"); //选择所有匹配name的节点 150 foreach (XmlNode node in nodelist) 151 { 152 if (node.InnerText == name) 153 { 154 xmlNode = node.ParentNode; 155 } 156 } 157 return xmlNode; 158 } 159 /// <summary> 160 /// 使用dataset显示整个XML文件 161 /// </summary> 162 /// <returns></returns> 163 public DataSet GetDs() 164 { 165 DataSet ds = new DataSet(); 166 try 167 { 168 System.IO.StringReader read = new System.IO.StringReader(myXmlDocument.SelectSingleNode("//histroy").OuterXml); 169 ds.ReadXml(read); 170 read.Close(); 171 } 172 catch 173 { } 174 return ds; 175 } 176 177 } 178 179 }
原文：http://blog.sina.com.cn/s/blog_66e765d90100j0az.html
