NetSkycn.Rss/RssWriter.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
using System.Xml.XPath;

namespace NetSkycn.Rss
{
    /// <summary>
    /// 对Rss进行写操作的类
    /// </summary>
    public sealed class RssWriter
    {
        private string fileName;
        private XmlDocument document;
        private RssChannel chanel;
        private XmlElement element;
        private XmlNode node;
        private XmlCDataSection section;

        public RssWriter()
        {
            document = new XmlDocument();
            document.AppendChild(document.CreateXmlDeclaration("1.0", "utf-8", null));
            XmlElement rss = document.CreateElement("rss");
            rss.SetAttribute("version", "2.0");
            XmlElement chanel = document.CreateElement("chanel");
            rss.AppendChild(chanel);
            document.AppendChild(element);
        }
        public RssWriter(string fileName):this()
        {
            this.fileName = fileName;
        }

        public string FileName
        {
            get
            {
                return fileName;
            }
            set
            {
                fileName = value;
            }
        }

        public void WriteChanel(RssChannel chanel)
        {
            node = document.SelectSingleNode("rss/chanel");
            #region chanel节点的子节点
            XmlNode title = document.CreateElement("title");
            title.InnerXml = document.CreateCDataSection(chanel.Title).ToString();

            XmlNode link = document.CreateElement("link");
            link.InnerXml = document.CreateCDataSection(chanel.Link).ToString();

            XmlNode description = document.CreateElement("description");