分享XmlHelper类

using System.Xml;using System;/// <summary>///XmlHelper类，用于处理Xml文档的相关操作/// </summary>public class XmlHelper{    /// <summary>    /// 读取Xml文档    /// 使用示列:    /// XmlHelper.XmlDocument(path);    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="node">节点名称</param>    /// <param name="attribute">特性名称</param>    /// <returns>string</returns>    public static XmlDocument ReadXmlNode(string path)    {        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            return doc;        }        catch        {            return null;        }    }    /// <summary>    /// 读取Xml文档节点数据    /// 使用示列:    /// XmlHelper.ReadXmlNode(path, "nodeName");    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="node">节点名称</param>    /// <param name="attribute">特性名称</param>    /// <returns>string</returns>    public static XmlNode ReadXmlNode(string path, string nodeName)    {        XmlNode value = null;        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            value = doc.SelectSingleNode(nodeName);        }        catch        { }        return value;    }    /// <summary>    /// 读取Xml文档节点数据    /// 使用示列:    /// XmlHelper.ReadXmlNodeText(path, "node", "");    /// XmlHelper.ReadXmlNodeText(path, "node", "attribute");    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="node">节点名称</param>    /// <param name="attribute">特性名称</param>    /// <returns>string</returns>    public static string ReadXmlNodeText(string path, string node, string attribute)    {        string value = "";        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            XmlNode no = doc.SelectSingleNode(node);            value = (string.IsNullOrEmpty(attribute)) ? no.InnerText : no.Attributes[attribute].Value;        }        catch        { }        return value;    }    /// <summary>    /// 设置XmlNode属性    /// 使用示列:    /// XmlHelper.SetAttribute(path, nodeName, "");    /// XmlHelper.SetAttribute(path, nodeName, attributeName,attributeValue);    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="nodeName">节点名称</param>    /// <param name="attributeName">属性名称</param>    /// <param name="attributeValue">属性值</param>    /// <returns>void</returns>    public static void SetAttribute(string path, string nodeName, string attributeName, string attributeValue)    {        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            XmlElement element = doc.SelectSingleNode(nodeName) as XmlElement;            if (element == null)            {                throw new Exception("节点元素不存在！");            }            else            {                if (attributeName.Equals(""))                {                    element.InnerText = attributeValue;                }                else                {                    element.SetAttribute(attributeName, attributeValue);                }                doc.Save(path);            }        }        catch        { }    }    /// <summary>    /// 删除XmlNode属性    /// 使用示列:    /// XmlHelper.DeleteAttribute(path, nodeName, "");    /// XmlHelper.DeleteAttribute(path, nodeName, attributeName,attributeValue);    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="nodeName">节点名称</param>    /// <param name="attributeName">属性名称</param>    /// <returns>void</returns>    public static void DeleteAttribute(string path, string nodeName, string attributeName)    {        if (attributeName.Equals(""))        {            return;        }        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            XmlElement element = doc.SelectSingleNode(nodeName) as XmlElement;            if (element == null)            {                throw new Exception("节点元素不存在！");            }            else            {                element.RemoveAttribute(attributeName);                doc.Save(path);            }        }        catch        { }    }    /// <summary>    /// 读取XmlNode的所以子节点    /// 使用示列:    /// XmlHelper.ReadNodeList(path, nodeName);    /// </summary>    /// <param name="path">文件路径</param>    /// <param name="nodeName">节点名称</param>    /// <returns>XmlNodeList</returns>    public static XmlNodeList ReadNodeList(string path, string nodeName)    {        try        {            XmlDocument doc = new XmlDocument();            doc.Load(path);            XmlNode element = doc.SelectSingleNode(nodeName);            if (element == null)            {                throw new Exception("节点元素不存在！");            }            else            {                return element.ChildNodes;            }        }        catch        {            return null;        }    }}

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