在.net的项目开发中，经常会对
1.创建
/// <summary> /// 创建/// </summary> /// <param name="name">根节点名称</param> /// <param name="type">根节点的一个属性值</param> /// <returns></returns> public static string name, string type) { try { doc = new "<" + name + "/>"); var rootEle = doc.DocumentElement; rootEle?.SetAttribute("type", type); } catch (Exception er) { throw new Exception(er.ToString()); } return doc; }2.读取
/// <summary> /// 读取数据 /// </summary> /// <param name="path">路径</param> /// <param name="node">节点</param> /// <param name="attribute">属性名，非空时返回该属性值，否则返回串联值</param> /// <returns>string</returns> public static string Read(string path, string node, string attribute) { var value = ""; try { var doc = new var xn = doc.SelectSingleNode(node); if (xn != null && xn.Attributes != null) value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value); } catch (Exception er) { throw new Exception(er.ToString()); } return value; }3.对
/// <summary> /// 插入数据 /// </summary> /// <param name="path">路径</param> /// <param name="node">节点</param> /// <param name="element">元素名，非空时插入新元素，否则在该元素中插入属性</param> /// <param name="attribute">属性名，非空时插入该元素属性值，否则插入元素值</param> /// <param name="value">值</param> /// <returns></returns> public static void Insert(string path, string node, string element, string attribute, string value) { try { var doc = new var xn = doc.SelectSingleNode(node); if (element.Equals("")) { if (!attribute.Equals("")) { var xe = (?.SetAttribute(attribute, value); //xe?.SetAttribute(attribute, value); } } else { var xe = doc.CreateElement(element); if (attribute.Equals("")) xe.InnerText = value; else xe.SetAttribute(attribute, value); xn?.AppendChild(xe); } doc.Save(path); } catch (Exception er) { throw new Exception(er.ToString()); } }4.修改
/// <summary> /// 修改数据 /// </summary> /// <param name="path">路径</param> /// <param name="node">节点</param> /// <param name="attribute">属性名，非空时修改该节点属性值，否则修改节点值</param> /// <param name="value">值</param> /// <returns></returns> public static void Update(string path, string node, string attribute, string value) { try { var doc = new var xn = doc.SelectSingleNode(node); var xe = (if (attribute.Equals("")) { if (xe != null) xe.InnerText = value; } else { xe?.SetAttribute(attribute, value); } doc.Save(path); } catch (Exception er) { throw new Exception(er.ToString()); } }5.删除
/// <summary> /// 删除数据 /// </summary> /// <param name="path">路径</param> /// <param name="node">节点</param> /// <param name="attribute">属性名，非空时删除该节点属性值，否则删除节点值</param> /// <returns></returns> public static void Delete(string path, string node, string attribute) { try { var doc = new var xn = doc.SelectSingleNode(node); var xe = (if (attribute.Equals("")) { xn?.ParentNode?.RemoveChild(xn); } else { xe?.RemoveAttribute(attribute); } doc.Save(path); } catch (Exception er) { throw new Exception(er.ToString()); } }6.读取
/// <summary> /// 获得/// </summary> /// <param name="path"></param> /// <param name="nodeName"></param> /// <returns></returns> public static string GetNodeInfoByNodeName(string path, string nodeName) { var string.Empty; try { var new var root = if (root == null) return var node = root.SelectSingleNode("//" + nodeName); if (node != null) { = node.InnerText; } } catch (Exception er) { throw new Exception(er.ToString()); } return 7.获取
/// <summary> /// 功能:读取指定节点的指定属性值 /// </summary> /// <param name="path"></param> /// <param name="strNode">节点名称</param> /// <param name="strAttribute">此节点的属性</param> /// <returns></returns> public string Getstring path, string strNode, string strAttribute) { var strReturn = ""; try { var new //根据指定路径获取节点 var if (null) { //获取节点的属性，并循环取出需要的属性值 var if (null) return strReturn; for (var i = 0; i < ) { if (continue; strReturn = break; } } } catch (throw new Exception(return strReturn; }8.设置
/// <summary> /// 功能:设置节点的属性值 /// </summary> /// <param name="path"></param> /// <param name="节点名称</param> /// <param name="属性名称</param> /// <param name="属性值</param> public void Setstring path, string string string try { var new //可以批量为符合条件的节点的属性付值 var if (null) return; foreach (var in from in select xn.Attributes) { if (null) return; for (var i = 0; i < ) { if (continue; = break; } } } catch (throw new Exception(9.读取
/// <summary> /// 读取/// </summary> /// <param name="source"></param> /// <param name="</param> /// <param name="nodeName">节点名称</param> /// <returns>节点内容</returns> public static object GetNodeValue(string source, string nodeName) { var xd = new if ( else { xd.Loadvar xe = xd.DocumentElement; = null; if (xe != null) { xn= xe.SelectSingleNode("//" + nodeName); } return xn.InnerText; }10.更新
/// <summary> /// 更新/// </summary> /// <param name="filePath">文件路径</param> /// <param name="nodeName">节点名称</param> /// <param name="nodeValue">更新内容</param> /// <returns>更新是否成功</returns> public static bool UpdateNode(string filePath, string nodeName, string nodeValue) { try { bool flag; var xd = new var xe = xd.DocumentElement; if (xe == null) return false; var xn = xe.SelectSingleNode("//" + nodeName); if (xn != null) { xn.InnerText = nodeValue; flag = true; } else { flag = false; } return flag; } catch (Exception ex) { throw new Exception(ex.Message); } }11.将对象转化为
/// <summary> /// 将对象转化为/// </summary> /// <typeparam name="T">C#对象名</typeparam> /// <param name="item">对象实例</param> /// <param name="path">路径</param> /// <param name="jjdbh">标号</param> /// <param name="ends">结束符号（整个</param> /// <returns></returns> public static string Writestring path, string jjdbh, string ends) { if (string.IsNullOrEmpty(ends)) { //默认为发送 ends = "send"; } //控制写入文件的次数 var i = 0; //获取当前对象的类型，也可以使用反射typeof(对象名) var serializer = new // object[] obj = { path, "\\", jjdbh, ends, "." }; var string.Concat(obj); while (true) { try { //用filestream方式创建文件不会出现“文件正在占用中，用File.create”则不行 var fs = System.IO.File.Create(= new StreamWriter(false, Encoding.UTF8); var new string.Empty, string.Empty); serializer.Serialize(writer, item, break; } catch (Exception) { if (i < 5) { i++; continue; } break; } } return SerializeTotrue); }12.向一个已经存在的父节点中插入一个子节点：
/// <summary> /// 向一个已经存在的父节点中插入一个子节点 /// </summary> /// <param name="path"></param> /// <param name="parentNodePath">父节点</param> /// <param name="childnodename">子节点名称</param> public void AddChildNode(string path, string parentNodePath, string childnodename) { try { var new var parent = if ((parentnull) { //如果此节点存在 parentelse { //如果不存在就放父节点添加 Getcatch (throw new Exception( 以上的方法总结采用.net4.5版本和c#6.0语法
原标题：C#操作XML的通用方法总结
关键词：C#
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