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+using System.Xml;
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+namespace ServiceWechat.Utility
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+{
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+ /// <summary>
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+ /// C#XML文件操作类 包含常用XML操作信息
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+ /// by CrazyCoder.Cn
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+ /// 转载请注明出处
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+ /// </summary>
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+ public class XmlHelper
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+ {
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+ protected XmlDocument xdoc = new XmlDocument();
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+ public XmlElement root;
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+
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+ #region LoadXml
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+ /// <summary>
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+ /// 加载Xml文档
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+ /// </summary>
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+ /// <param name="xml"></param>
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+ public void LoadXml(string xml)
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+ {
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+ xdoc.Load(xml);
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+
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+ }
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+
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+ /// <summary>
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+ /// 获取XML文件内容
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+ /// </summary>
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+ /// <param name="xml"></param>
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+ public string InnerXml(string xml)
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+ {
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+ xdoc.Load(xml);
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+ return xdoc.InnerXml;
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+ }
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+ /// <summary>
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+ /// 获取XML文件内容
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+ /// </summary>
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+ /// <param name="xml"></param>
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+ public void LoadFromXmlString(string xml)
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+ {
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+ xdoc.LoadXml(xml);
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+ }
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+ #endregion
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+
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+ #region 创建一个节点,并在该节点下加入子节点
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+
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+ /// <summary>
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+ /// 创建一个节点,并在该节点下加入子节点
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+ /// </summary>
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+ /// <param name="RootNode"></param>
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+ /// <param name="ElementName"></param>
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+ /// <param name="ChildName"></param>
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+ /// <param name="ChildValue"></param>
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+ /// <returns></returns>
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+ public void CreateElement(string RootNode, string ElementName, string[] ChildName, string[] ChildValue)
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+ {
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+ XmlNode Root = xdoc.SelectSingleNode(RootNode);
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+ XmlElement Node = xdoc.CreateElement(ElementName);
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+ if (ChildName.Length == ChildValue.Length)
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+ {
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+ for (int i = 0; i < ChildName.Length; i++)
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+ {
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+ XmlElement ChildNode = xdoc.CreateElement(ChildName[i]);
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+ ChildNode.InnerText = ChildValue[i];
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+ Node.AppendChild(ChildNode);
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+ }
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+ }
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+ if (Root != null) Root.AppendChild(Node);
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+ }
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+ #endregion
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+
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+ #region 删除某一节点
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+
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+ /// <summary>
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+ /// 创建一个节点,并在该节点下加入子节点
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+ /// </summary>
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+ /// <param name="RootNode"></param>
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+ /// <param name="ChildName"></param>
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+ /// <param name="ChildValue"></param>
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+ /// <returns></returns>
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+ public void DeleteElement(string RootNode, string ChildName, string ChildValue)
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+ {
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+ XmlNode Root = xdoc.SelectSingleNode(RootNode);
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+ if (Root != null)
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+ {
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+ XmlNodeList Node = Root.ChildNodes;
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+ foreach (XmlNode xn in Node)
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+ {
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+ var selectSingleNode = xn.SelectSingleNode(ChildName);
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+ if (selectSingleNode != null && selectSingleNode.InnerText == ChildValue)
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+ {
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+ Root.RemoveChild(xn);
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+ }
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+ }
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+ }
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+ }
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+ #endregion
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+
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+ #region 编辑某一节点
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+
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+ /// <summary>
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+ /// 创建一个节点,并在该节点下加入子节点
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+ /// </summary>
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+ /// <returns></returns>
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+ public void UpdateElement(string RootNode, string ElementName, string ElementValue, string[] ChildName, string[] ChildValue)
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+ {
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+ XmlNode Root = xdoc.SelectSingleNode(RootNode);
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+ if (Root != null)
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+ {
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+ XmlNodeList Node = Root.ChildNodes;
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+ foreach (XmlNode xn in Node)
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+ {
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+ var selectSingleNode = xn.SelectSingleNode(ElementName);
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+ if (selectSingleNode != null && selectSingleNode.InnerText == ElementValue)
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+ {
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+ if (ChildName.Length == ChildValue.Length)
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+ {
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+ for (int i = 0; i < ChildName.Length; i++)
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+ {
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+ var singleNode = xn.SelectSingleNode(ChildName[i]);
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+ if (singleNode != null)
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+ singleNode.InnerText = ChildValue[i];
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+ }
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+ }
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+ break;
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+ }
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+ }
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+ }
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+ }
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+
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+ public void UpdateElement(string RootNode, string[] ChildName, string[] ChildValue)
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+ {
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+ XmlNode Root = xdoc.SelectSingleNode(RootNode);
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+ if (ChildName.Length == ChildValue.Length)
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+ {
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+ for (int i = 0; i < ChildName.Length; i++)
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+ {
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+ if (Root != null)
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+ {
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+ var selectSingleNode = Root.SelectSingleNode(ChildName[i]);
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+ if (selectSingleNode != null)
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+ selectSingleNode.InnerText = ChildValue[i];
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+ }
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+ }
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+ }
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+
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+ }
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+
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+
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+ public void UpdateElement(string RootNode, string NodeName, string[] ChildName, string[] ChildValue)
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+ {
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+ XmlNode Root = xdoc.SelectSingleNode(RootNode);
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+ if (Root != null)
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+ {
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+ XmlNode Node = Root.SelectSingleNode(NodeName);
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+ if (ChildName.Length == ChildValue.Length)
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+ {
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+ for (int i = 0; i < ChildName.Length; i++)
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+ {
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+ if (Node != null)
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+ {
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+ var selectSingleNode = Node.SelectSingleNode(ChildName[i]);
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+ if (selectSingleNode != null)
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+ selectSingleNode.InnerText = ChildValue[i];
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+ }
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+ }
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+ }
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+ }
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+ }
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+
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+ #endregion
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+
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+ #region 取得名称为name的结点的值
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+ /// <summary>
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+ /// 取得名称为name的结点的值
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+ /// </summary>
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+ /// <param name="name"></param>
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+ /// <returns></returns>
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+ public string GetValue(string name)
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+ {
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+ if (xdoc.DocumentElement != null)
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+ {
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+ XmlNode xn = FindXnByName(xdoc.DocumentElement.ChildNodes, name);
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+ if (xn == null) return null;
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+ return xn.InnerText;
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+ }
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+ return null;
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+ }
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+
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+ #endregion
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+
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+ #region 在某节点下取名称为name的结点的值
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+ /// <summary>
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+ /// 在某节点下取名称为name的结点的值
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+ /// </summary>
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+ /// <returns></returns>
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+ public string GetValue(string NodeName, string name)
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+ {
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+ string BackString = "";
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+ if (xdoc.DocumentElement != null)
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+ {
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+ XmlNode xn = FindXnByName(xdoc.DocumentElement.ChildNodes, NodeName);
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+ if (xn == null)
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+ {
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+ return "";
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+ }
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+ XmlNode nn = FindXnByName(xn.ChildNodes, name);
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+ if (nn == null)
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+ {
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+ return "";
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+ }
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+ BackString = nn.InnerText;
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+ }
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+ return BackString;
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+ }
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+ #endregion
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+
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+ #region 通过节点名称找到指定的节点
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+ /// <summary>
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+ /// 通过节点名称找到指定的节点
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+ /// </summary>
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+ /// <param name="xnl"></param>
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+ /// <param name="strName"></param>
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+ /// <returns></returns>
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+ protected XmlNode FindXnByName(XmlNodeList xnl, string strName)
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+ {
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+ for (int i = 0; i < xnl.Count; i++)
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+ {
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+ var item = xnl.Item(i);
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+ if (item != null && item.LocalName == strName)
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+ {
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+ return xnl.Item(i);
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+ }
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+ }
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+ return null;
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+ }
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+ #endregion
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+
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+ #region 为一个节点指定值
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+ /// <summary>
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+ /// 为一个节点指定值
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+ /// </summary>
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+ /// <param name="strName"></param>
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+ /// <param name="strValue"></param>
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+ public void SetValue(string strName, string strValue)
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+ {
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+ if (xdoc.DocumentElement != null)
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+ {
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+ XmlNodeList xnl = xdoc.DocumentElement.ChildNodes;
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+ for (int i = 0; i < xnl.Count; i++)
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+ {
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+ var xmlNode = xnl.Item(i);
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+ if (xmlNode != null && xmlNode.LocalName == strName)
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+ {
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+ var item = xnl.Item(i);
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+ if (item != null) item.InnerText = strValue;
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+ return;
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+ }
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+ }
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+ }
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+ return;
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+ }
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+ #endregion
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+
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+ #region 保存XML文档
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+ /// <summary>
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+ /// 保存XML文档
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+ /// </summary>
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+ public void Save(string name)
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+ {
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+ xdoc.Save(name);
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+ }
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+ #endregion
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+ }
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+}
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+
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