读取 XML类 (XmlHelper)

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
namespace System.Bwch.XmlConfig
{
/**////
/// 读取XML配置文件类
///
public class XmlHelper
{
private string strXmlPath = ""; //Xml文档路径
private XmlDocument xmlDoc; //XML文档
/**////
/// 初始化ReadXml类
///
/// XML文件路径
public XmlHelper(string XMLPath)
{
if (!System.IO.File.Exists(XMLPath))
{
throw new Exception("没有找到指定的路径：" + XMLPath + "的XML文档");
}
strXmlPath = XMLPath;
xmlDoc = new XmlDocument();
xmlDoc.Load(XMLPath);
}
/**////
/// 读取XML文件指定键值的value 值
///
/// 键值的路径,格式为(根节点/节点/子节点)
/// 指定键值的属性名称
/// value值
public string ReadXmlValue(string XMLNodePath,string valueName)
{
try
{
XmlElement xml = (XmlElement)xmlDoc.SelectSingleNode(XMLNodePath);
return xml.GetAttribute(valueName);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/**////
/// 写XML指定节点的属性
///
/// 键值路径，格式为((根节点/节点/子节点))
/// 属性名称
/// 属性
///
public bool WriteXmlValue(string XmlNodePath,string valueName, string Value)
{
try
{
XmlElement xml = (XmlElement)xmlDoc.SelectSingleNode(XmlNodePath);
xml.SetAttribute(valueName, Value); //设置
xmlDoc.Save(strXmlPath); //保存
return true;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/**//