C# XML操作类分享

本文实例为大家分享了Android九宫格图片展示的具体代码，供大家参考，具体内容如下

XmlHelper

using System.Xml;
using System.Data;

namespace DotNet.Utilities
{
 /// <summary>
 /// Xml的操作公共类
 /// </summary>
 public class XmlHelper
 {
  #region 字段定义
  /// <summary>
  /// XML文件的物理路径
  /// </summary>
  private string _filePath = string.Empty;
  /// <summary>
  /// Xml文档
  /// </summary>
  private XmlDocument _xml;
  /// <summary>
  /// XML的根节点
  /// </summary>
  private XmlElement _element;
  #endregion

  #region 构造方法
  /// <summary>
  /// 实例化XmlHelper对象
  /// </summary>
  /// <param name="xmlFilePath">Xml文件的相对路径</param>
  public XmlHelper(string xmlFilePath)
  {
   //获取XML文件的绝对路径
   _filePath = SysHelper.GetPath(xmlFilePath);
  }
  #endregion

  #region 创建XML的根节点
  /// <summary>
  /// 创建XML的根节点
  /// </summary>
  private void CreateXMLElement()
  {

   //创建一个XML对象
   _xml = new XmlDocument();

   if (DirFile.IsExistFile(_filePath))
   {
    //加载XML文件
    _xml.Load(this._filePath);
   }

   //为XML的根节点赋值
   _element = _xml.DocumentElement;
  }
  #endregion

  #region 获取指定XPath表达式的节点对象
  /// <summary>
  /// 获取指定XPath表达式的节点对象
  /// </summary>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  public XmlNode GetNode(string xPath)
  {
   //创建XML的根节点
   CreateXMLElement();

   //返回XPath节点
   return _element.SelectSingleNode(xPath);
  }
  #endregion

  #region 获取指定XPath表达式节点的值
  /// <summary>
  /// 获取指定XPath表达式节点的值
  /// </summary>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  public string GetValue(string xPath)
  {
   //创建XML的根节点
   CreateXMLElement();

   //返回XPath节点的值
   return _element.SelectSingleNode(xPath).InnerText;
  }
  #endregion

  #region 获取指定XPath表达式节点的属性值
  /// <summary>
  /// 获取指定XPath表达式节点的属性值
  /// </summary>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  /// <param name="attributeName">属性名</param>
  public string GetAttributeValue(string xPath, string attributeName)
  {
   //创建XML的根节点
   CreateXMLElement();

   //返回XPath节点的属性值
   return _element.SelectSingleNode(xPath).Attributes[attributeName].Value;
  }
  #endregion

  #region 新增节点
  /// <summary>
  /// 1. 功能：新增节点。
  /// 2. 使用条件：将任意节点插入到当前Xml文件中。
  /// </summary>
  /// <param name="xmlNode">要插入的Xml节点</param>
  public void AppendNode(XmlNode xmlNode)
  {
   //创建XML的根节点
   CreateXMLElement();

   //导入节点
   XmlNode node = _xml.ImportNode(xmlNode, true);

   //将节点插入到根节点下
   _element.AppendChild(node);
  }

  /// <summary>
  /// 1. 功能：新增节点。
  /// 2. 使用条件：将DataSet中的第一条记录插入Xml文件中。
  /// </summary>
  /// <param name="ds">DataSet的实例，该DataSet中应该只有一条记录</param>
  public void AppendNode(DataSet ds)
  {
   //创建XmlDataDocument对象
   XmlDataDocument xmlDataDocument = new XmlDataDocument(ds);

   //导入节点
   XmlNode node = xmlDataDocument.DocumentElement.FirstChild;

   //将节点插入到根节点下
   AppendNode(node);
  }
  #endregion

  #region 删除节点
  /// <summary>
  /// 删除指定XPath表达式的节点
  /// </summary>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  public void RemoveNode(string xPath)
  {
   //创建XML的根节点
   CreateXMLElement();

   //获取要删除的节点
   XmlNode node = _xml.SelectSingleNode(xPath);

   //删除节点
   _element.RemoveChild(node);
  }
  #endregion //删除节点

  #region 保存XML文件
  /// <summary>
  /// 保存XML文件
  /// </summary>
  public void Save()
  {
   //创建XML的根节点
   CreateXMLElement();

   //保存XML文件
   _xml.Save(this._filePath);
  }
  #endregion //保存XML文件

  #region 静态方法

  #region 创建根节点对象
  /// <summary>
  /// 创建根节点对象
  /// </summary>
  /// <param name="xmlFilePath">Xml文件的相对路径</param>
  private static XmlElement CreateRootElement(string xmlFilePath)
  {
   //定义变量，表示XML文件的绝对路径
   string filePath = "";

   //获取XML文件的绝对路径
   filePath = SysHelper.GetPath(xmlFilePath);

   //创建XmlDocument对象
   XmlDocument xmlDocument = new XmlDocument();
   //加载XML文件
   xmlDocument.Load(filePath);

   //返回根节点
   return xmlDocument.DocumentElement;
  }
  #endregion

  #region 获取指定XPath表达式节点的值
  /// <summary>
  /// 获取指定XPath表达式节点的值
  /// </summary>
  /// <param name="xmlFilePath">Xml文件的相对路径</param>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  public static string GetValue(string xmlFilePath, string xPath)
  {
   //创建根对象
   XmlElement rootElement = CreateRootElement(xmlFilePath);

   //返回XPath节点的值
   return rootElement.SelectSingleNode(xPath).InnerText;
  }
  #endregion

  #region 获取指定XPath表达式节点的属性值
  /// <summary>
  /// 获取指定XPath表达式节点的属性值
  /// </summary>
  /// <param name="xmlFilePath">Xml文件的相对路径</param>
  /// <param name="xPath">XPath表达式,
  /// 范例1: @"Skill/First/SkillItem", 等效于 @"//Skill/First/SkillItem"
  /// 范例2: @"Table[USERNAME='a']" , []表示筛选,USERNAME是Table下的一个子节点.
  /// 范例3: @"ApplyPost/Item[@itemName='岗位编号']",@itemName是Item节点的属性.
  /// </param>
  /// <param name="attributeName">属性名</param>
  public static string GetAttributeValue(string xmlFilePath, string xPath, string attributeName)
  {
   //创建根对象
   XmlElement rootElement = CreateRootElement(xmlFilePath);

   //返回XPath节点的属性值
   return rootElement.SelectSingleNode(xPath).Attributes[attributeName].Value;
  }
  #endregion

  #endregion

  public static void SetValue(string xmlFilePath, string xPath, string newtext)
  {
   //string path = SysHelper.GetPath(xmlFilePath);
   //var queryXML = from xmlLog in xelem.Descendants("msg_log")
   //    //所有名字为Bin的记录
   //    where xmlLog.Element("user").Value == "Bin"
   //    select xmlLog;

   //foreach (XElement el in queryXML)
   //{
   // el.Element("user").Value = "LiuBin";//开始修改
   //}
   //xelem.Save(path);
  }
 }
}

XmlProcess

using System;
using System.Data;
using System.IO;
using System.Xml;

namespace DotNet.Utilities
{
 public class XMLProcess
 {
  #region 构造函数
  public XMLProcess()
  { }

  public XMLProcess(string strPath)
  {
   this._XMLPath = strPath;
  }
  #endregion

  #region 公有属性
  private string _XMLPath;
  public string XMLPath
  {
   get { return this._XMLPath; }
  }
  #endregion

  #region 私有方法
  /// <summary>
  /// 导入XML文件
  /// </summary>
  /// <param name="XMLPath">XML文件路径</param>
  private XmlDocument XMLLoad()
  {
   string XMLFile = XMLPath;
   XmlDocument xmldoc = new XmlDocument();
   try
   {
    string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLFile;
    if (File.Exists(filename)) xmldoc.Load(filename);
   }
   catch (Exception e)
   { }
   return xmldoc;
  }

  /// <summary>
  /// 导入XML文件
  /// </summary>
  /// <param name="XMLPath">XML文件路径</param>
  private static XmlDocument XMLLoad(string strPath)
  {
   XmlDocument xmldoc = new XmlDocument();
   try
   {
    string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + strPath;
    if (File.Exists(filename)) xmldoc.Load(filename);
   }
   catch (Exception e)
   { }
   return xmldoc;
  }

  /// <summary>
  /// 返回完整路径
  /// </summary>
  /// <param name="strPath">Xml的路径</param>
  private static string GetXmlFullPath(string strPath)
  {
   if (strPath.IndexOf(":") > 0)
   {
    return strPath;
   }
   else
   {
    return System.Web.HttpContext.Current.Server.MapPath(strPath);
   }
  }
  #endregion

  #region 读取数据
  /// <summary>
  /// 读取指定节点的数据
  /// </summary>
  /// <param name="node">节点</param>
  /// 使用示列:
  /// XMLProsess.Read("/Node", "")
  /// XMLProsess.Read("/Node/Element[@Attribute='Name']")
  public string Read(string node)
  {
   string value = "";
   try
   {
    XmlDocument doc = XMLLoad();
    XmlNode xn = doc.SelectSingleNode(node);
    value = xn.InnerText;
   }
   catch { }
   return value;
  }

  /// <summary>
  /// 读取指定路径和节点的串联值
  /// </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>
  /// 使用示列:
  /// XMLProsess.Read(path, "/Node", "")
  /// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']")
  public static string Read(string path, string node)
  {
   string value = "";
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    value = xn.InnerText;
   }
   catch { }
   return value;
  }

  /// <summary>
  /// 读取指定路径和节点的属性值
  /// </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>
  /// 使用示列:
  /// XMLProsess.Read(path, "/Node", "")
  /// XMLProsess.Read(path, "/Node/Element[@Attribute='Name']", "Attribute")
  public static string Read(string path, string node, string attribute)
  {
   string value = "";
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value);
   }
   catch { }
   return value;
  }

  /// <summary>
  /// 获取某一节点的所有孩子节点的值
  /// </summary>
  /// <param name="node">要查询的节点</param>
  public string[] ReadAllChildallValue(string node)
  {
   int i = 0;
   string[] str = { };
   XmlDocument doc = XMLLoad();
   XmlNode xn = doc.SelectSingleNode(node);
   XmlNodeList nodelist = xn.ChildNodes; //得到该节点的子节点
   if (nodelist.Count > 0)
   {
    str = new string[nodelist.Count];
    foreach (XmlElement el in nodelist)//读元素值
    {
     str[i] = el.Value;
     i++;
    }
   }
   return str;
  }

  /// <summary>
  /// 获取某一节点的所有孩子节点的值
  /// </summary>
  /// <param name="node">要查询的节点</param>
  public XmlNodeList ReadAllChild(string node)
  {
   XmlDocument doc = XMLLoad();
   XmlNode xn = doc.SelectSingleNode(node);
   XmlNodeList nodelist = xn.ChildNodes; //得到该节点的子节点
   return nodelist;
  }

  /// <summary>
  /// 读取XML返回经排序或筛选后的DataView
  /// </summary>
  /// <param name="strWhere">筛选条件，如:"name='kgdiwss'"</param>
  /// <param name="strSort"> 排序条件，如:"Id desc"</param>
  public DataView GetDataViewByXml(string strWhere, string strSort)
  {
   try
   {
    string XMLFile = this.XMLPath;
    string filename = AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLFile;
    DataSet ds = new DataSet();
    ds.ReadXml(filename);
    DataView dv = new DataView(ds.Tables[0]); //创建DataView来完成排序或筛选操作
    if (strSort != null)
    {
     dv.Sort = strSort; //对DataView中的记录进行排序
    }
    if (strWhere != null)
    {
     dv.RowFilter = strWhere; //对DataView中的记录进行筛选，找到我们想要的记录
    }
    return dv;
   }
   catch (Exception)
   {
    return null;
   }
  }

  /// <summary>
  /// 读取XML返回DataSet
  /// </summary>
  /// <param name="strXmlPath">XML文件相对路径</param>
  public DataSet GetDataSetByXml(string strXmlPath)
  {
   try
   {
    DataSet ds = new DataSet();
    ds.ReadXml(GetXmlFullPath(strXmlPath));
    if (ds.Tables.Count > 0)
    {
     return ds;
    }
    return null;
   }
   catch (Exception)
   {
    return null;
   }
  }
  #endregion

  #region 插入数据
  /// <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>
  /// 使用示列:
  /// XMLProsess.Insert(path, "/Node", "Element", "", "Value")
  /// XMLProsess.Insert(path, "/Node", "Element", "Attribute", "Value")
  /// XMLProsess.Insert(path, "/Node", "", "Attribute", "Value")
  public static void Insert(string path, string node, string element, string attribute, string value)
  {
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
    XmlNode xn = doc.SelectSingleNode(node);
    if (element.Equals(""))
    {
     if (!attribute.Equals(""))
     {
      XmlElement xe = (XmlElement)xn;
      xe.SetAttribute(attribute, value);
     }
    }
    else
    {
     XmlElement xe = doc.CreateElement(element);
     if (attribute.Equals(""))
      xe.InnerText = value;
     else
      xe.SetAttribute(attribute, value);
     xn.AppendChild(xe);
    }
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <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="strList">由XML属性名和值组成的二维数组</param>
  public static void Insert(string path, string node, string element, string[][] strList)
  {
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
    XmlNode xn = doc.SelectSingleNode(node);
    XmlElement xe = doc.CreateElement(element);
    string strAttribute = "";
    string strValue = "";
    for (int i = 0; i < strList.Length; i++)
    {
     for (int j = 0; j < strList[i].Length; j++)
     {
      if (j == 0)
       strAttribute = strList[i][j];
      else
       strValue = strList[i][j];
     }
     if (strAttribute.Equals(""))
      xe.InnerText = strValue;
     else
      xe.SetAttribute(strAttribute, strValue);
    }
    xn.AppendChild(xe);
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <summary>
  /// 插入一行数据
  /// </summary>
  /// <param name="strXmlPath">XML文件相对路径</param>
  /// <param name="Columns">要插入行的列名数组，如：string[] Columns = {"name","IsMarried"};</param>
  /// <param name="ColumnValue">要插入行每列的值数组，如：string[] ColumnValue={"XML大全","false"};</param>
  /// <returns>成功返回true,否则返回false</returns>
  public static bool WriteXmlByDataSet(string strXmlPath, string[] Columns, string[] ColumnValue)
  {
   try
   {
    //根据传入的XML路径得到.XSD的路径，两个文件放在同一个目录下
    string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd";
    DataSet ds = new DataSet();
    ds.ReadXmlSchema(GetXmlFullPath(strXsdPath)); //读XML架构，关系到列的数据类型
    ds.ReadXml(GetXmlFullPath(strXmlPath));
    DataTable dt = ds.Tables[0];
    DataRow newRow = dt.NewRow();     //在原来的表格基础上创建新行
    for (int i = 0; i < Columns.Length; i++)  //循环给一行中的各个列赋值
    {
     newRow[Columns[i]] = ColumnValue[i];
    }
    dt.Rows.Add(newRow);
    dt.AcceptChanges();
    ds.AcceptChanges();
    ds.WriteXml(GetXmlFullPath(strXmlPath));
    return true;
   }
   catch (Exception)
   {
    return false;
   }
  }
  #endregion

  #region 修改数据
  /// <summary>
  /// 修改指定节点的数据
  /// </summary>
  /// <param name="node">节点</param>
  /// <param name="value">值</param>
  public void Update(string node, string value)
  {
   try
   {
    XmlDocument doc = XMLLoad();
    XmlNode xn = doc.SelectSingleNode(node);
    xn.InnerText = value;
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + XMLPath);
   }
   catch { }
  }

  /// <summary>
  /// 修改指定节点的数据
  /// </summary>
  /// <param name="path">路径</param>
  /// <param name="node">节点</param>
  /// <param name="value">值</param>
  /// 使用示列:
  /// XMLProsess.Insert(path, "/Node","Value")
  /// XMLProsess.Insert(path, "/Node","Value")
  public static void Update(string path, string node, string value)
  {
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    xn.InnerText = value;
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <summary>
  /// 修改指定节点的属性值(静态)
  /// </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>
  /// 使用示列:
  /// XMLProsess.Insert(path, "/Node", "", "Value")
  /// XMLProsess.Insert(path, "/Node", "Attribute", "Value")
  public static void Update(string path, string node, string attribute, string value)
  {
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    XmlElement xe = (XmlElement)xn;
    if (attribute.Equals(""))
     xe.InnerText = value;
    else
     xe.SetAttribute(attribute, value);
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <summary>
  /// 更改符合条件的一条记录
  /// </summary>
  /// <param name="strXmlPath">XML文件路径</param>
  /// <param name="Columns">列名数组</param>
  /// <param name="ColumnValue">列值数组</param>
  /// <param name="strWhereColumnName">条件列名</param>
  /// <param name="strWhereColumnValue">条件列值</param>
  public static bool UpdateXmlRow(string strXmlPath, string[] Columns, string[] ColumnValue, string strWhereColumnName, string strWhereColumnValue)
  {
   try
   {
    string strXsdPath = strXmlPath.Substring(0, strXmlPath.IndexOf(".")) + ".xsd";
    DataSet ds = new DataSet();
    ds.ReadXmlSchema(GetXmlFullPath(strXsdPath));//读XML架构，关系到列的数据类型
    ds.ReadXml(GetXmlFullPath(strXmlPath));

    //先判断行数
    if (ds.Tables[0].Rows.Count > 0)
    {
     for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
     {
      //如果当前记录为符合Where条件的记录
      if (ds.Tables[0].Rows[i][strWhereColumnName].ToString().Trim().Equals(strWhereColumnValue))
      {
       //循环给找到行的各列赋新值
       for (int j = 0; j < Columns.Length; j++)
       {
        ds.Tables[0].Rows[i][Columns[j]] = ColumnValue[j];
       }
       ds.AcceptChanges();      //更新DataSet
       ds.WriteXml(GetXmlFullPath(strXmlPath));//重新写入XML文件
       return true;
      }
     }

    }
    return false;
   }
   catch (Exception)
   {
    return false;
   }
  }
  #endregion

  #region 删除数据
  /// <summary>
  /// 删除节点值
  /// </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>
  /// <param name="value">值</param>
  /// 使用示列:
  /// XMLProsess.Delete(path, "/Node", "")
  /// XMLProsess.Delete(path, "/Node", "Attribute")
  public static void Delete(string path, string node)
  {
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    xn.ParentNode.RemoveChild(xn);
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <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>
  /// <param name="value">值</param>
  /// 使用示列:
  /// XMLProsess.Delete(path, "/Node", "")
  /// XMLProsess.Delete(path, "/Node", "Attribute")
  public static void Delete(string path, string node, string attribute)
  {
   try
   {
    XmlDocument doc = XMLLoad(path);
    XmlNode xn = doc.SelectSingleNode(node);
    XmlElement xe = (XmlElement)xn;
    if (attribute.Equals(""))
     xn.ParentNode.RemoveChild(xn);
    else
     xe.RemoveAttribute(attribute);
    doc.Save(AppDomain.CurrentDomain.BaseDirectory.ToString() + path);
   }
   catch { }
  }

  /// <summary>
  /// 删除所有行
  /// </summary>
  /// <param name="strXmlPath">XML路径</param>
  public static bool DeleteXmlAllRows(string strXmlPath)
  {
   try
   {
    DataSet ds = new DataSet();
    ds.ReadXml(GetXmlFullPath(strXmlPath));
    if (ds.Tables[0].Rows.Count > 0)
    {
     ds.Tables[0].Rows.Clear();
    }
    ds.WriteXml(GetXmlFullPath(strXmlPath));
    return true;
   }
   catch (Exception)
   {
    return false;
   }
  }

  /// <summary>
  /// 通过删除DataSet中指定索引行，重写XML以实现删除指定行
  /// </summary>
  /// <param name="iDeleteRow">要删除的行在DataSet中的Index值</param>
  public static bool DeleteXmlRowByIndex(string strXmlPath, int iDeleteRow)
  {
   try
   {
    DataSet ds = new DataSet();
    ds.ReadXml(GetXmlFullPath(strXmlPath));
    if (ds.Tables[0].Rows.Count > 0)
    {
     ds.Tables[0].Rows[iDeleteRow].Delete();
    }
    ds.WriteXml(GetXmlFullPath(strXmlPath));
    return true;
   }
   catch (Exception)
   {
    return false;
   }
  }

  /// <summary>
  /// 删除指定列中指定值的行
  /// </summary>
  /// <param name="strXmlPath">XML相对路径</param>
  /// <param name="strColumn">列名</param>
  /// <param name="ColumnValue">指定值</param>
  public static bool DeleteXmlRows(string strXmlPath, string strColumn, string[] ColumnValue)
  {
   try
   {
    DataSet ds = new DataSet();
    ds.ReadXml(GetXmlFullPath(strXmlPath));
    if (ds.Tables[0].Rows.Count > 0)
    {
     //判断行多还是删除的值多，多的for循环放在里面
     if (ColumnValue.Length > ds.Tables[0].Rows.Count)
     {
      for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
      {
       for (int j = 0; j < ColumnValue.Length; j++)
       {
        if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j]))
        {
         ds.Tables[0].Rows[i].Delete();
        }
       }
      }
     }
     else
     {
      for (int j = 0; j < ColumnValue.Length; j++)
      {
       for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
       {
        if (ds.Tables[0].Rows[i][strColumn].ToString().Trim().Equals(ColumnValue[j]))
        {
         ds.Tables[0].Rows[i].Delete();
        }
       }
      }
     }
     ds.WriteXml(GetXmlFullPath(strXmlPath));
    }
    return true;
   }
   catch (Exception)
   {
    return false;
   }
  }
  #endregion
 }
}

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