C#自定义处理xml数据类实例

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
    /// 

    /// 导入XML文件
    /// 
    /// XML文件路径
    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;
    }
    /// 

    /// 导入XML文件
    /// 
    /// XML文件路径
    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;
    }
    /// 

    /// 返回完整路径
    /// 
    /// Xml的路径
    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
    /// 

    /// 读取指定节点的数据
    /// 
    /// 节点
    /// 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;
    }
    /// 

    /// 读取指定路径和节点的串联值
    /// 
    /// 路径
    /// 节点
    /// 属性名，非空时返回该属性值，否则返回串联值
    /// 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;
    }
    /// 

    /// 读取指定路径和节点的属性值
    /// 
    /// 路径
    /// 节点
    /// 属性名，非空时返回该属性值，否则返回串联值
    /// 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;
    }
    /// 

    /// 获取某一节点的所有孩子节点的值
    /// 
    /// 要查询的节点
    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;
    }
    /// 

    /// 获取某一节点的所有孩子节点的值
    /// 
    /// 要查询的节点
    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;
    }
    /// 

    /// 读取XML返回经排序或筛选后的DataView
    /// 
    /// 筛选条件，如:"name=‘kgdiwss‘"
    ///  排序条件，如:"Id desc"
    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;
      }
    }
    /// 

    /// 读取XML返回DataSet
    /// 
    /// XML文件相对路径
    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
    /// 

    /// 插入数据
    /// 
    /// 路径
    /// 节点
    /// 元素名，非空时插入新元素，否则在该元素中插入属性
    /// 属性名，非空时插入该元素属性值，否则插入元素值
    /// 值
    /// 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 { }
    }
    /// 

    /// 插入数据
    /// 
    /// 路径
    /// 节点
    /// 元素名，非空时插入新元素，否则在该元素中插入属性
    /// 由XML属性名和值组成的二维数组
    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 
    /// 插入一行数据
    /// 
    /// XML文件相对路径
    /// 要插入行的列名数组，如：string[] Columns = {"name","IsMarried"};
    /// 要插入行每列的值数组，如：string[] ColumnValue={"XML大全","false"};
    /// 成功返回true,否则返回false
    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 
    /// 修改指定节点的数据
    /// 
    /// 节点
    /// 值
    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 { }
    }
    /// 

    /// 修改指定节点的数据
    /// 
    /// 路径
    /// 节点
    /// 值
    /// 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 { }
    }
    /// 

    /// 修改指定节点的属性值(静态)
    /// 
    /// 路径
    /// 节点
    /// 属性名，非空时修改该节点属性值，否则修改节点值
    /// 值
    /// 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 { }
    }
    /// 

    /// 更改符合条件的一条记录
    /// 
    /// XML文件路径
    /// 列名数组
    /// 列值数组
    /// 条件列名
    /// 条件列值
    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 
    /// 删除节点值
    /// 
    /// 路径
    /// 节点
    /// 属性名，非空时删除该节点属性值，否则删除节点值
    /// 值
    /// 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 { }
    }
    /// 

    /// 删除数据
    /// 
    /// 路径
    /// 节点
    /// 属性名，非空时删除该节点属性值，否则删除节点值
    /// 值
    /// 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 { }
    }
    /// 

    /// 删除所有行
    /// 
    /// XML路径
    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;
      }
    }
    /// 

    /// 通过删除DataSet中指定索引行，重写XML以实现删除指定行
    /// 
    /// 要删除的行在DataSet中的Index值
    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;
      }
    }
    /// 

    /// 删除指定列中指定值的行
    /// 
    /// XML相对路径
    /// 列名
    /// 指定值
    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