233
  234 /**//// <summary>
  235 /// Write in items /?"
  236 /// </summary>
  237 private void WriteItem(ItemInfo item)
  238 {
  239 // Write in item block
  240 rssWriter.WriteStartElement("item");
  241 rssWriter.WriteString("\n ");
  242 rssWriter.WriteElementString("title", item.ItemTitle);
  243 rssWriter.WriteString("\n ");
  244 rssWriter.WriteElementString("link", item.ItemLink);
  245 rssWriter.WriteString("\n ");
  246
  247 rssWriter.WriteStartElement("description");
  248 rssWriter.WriteString("\n ");
  249 rssWriter.WriteCData(item.ItemDescription);
  250 rssWriter.WriteString("\n ");
  251 rssWriter.WriteEndElement();
  252
  253 rssWriter.WriteString("\n ");
  254 rssWriter.WriteElementString("pubDate", item.ItemPubDate);
  255 rssWriter.WriteString("\n ");
  256 rssWriter.WriteElementString("dc:date.Taken", item.ItemDateTaken);
  257 rssWriter.WriteString("\n ");
  258 rssWriter.WriteElementString("author", item.ItemAuthor);
  259 rssWriter.WriteString("\n ");
  260 rssWriter.WriteStartElement("guid");
  261 rssWriter.WriteAttributeString("isPermaLink", "false");
  262 rssWriter.WriteString(item.ItemGuid);
  263 rssWriter.WriteEndElement();
  264
  265
  266 // Write item media here
  267
  268 }
  269
  270 /**//// <summary>
  271 /// Write in item media
  272 /// </summary>
  273 /// <param name="item">ItemInfo item</param>
  274 private void WriteItemMedia(ItemInfo item)
  275 {
  276 // Write in media
  277 rssWriter.WriteString("\n ");
  278 rssWriter.WriteStartElement("media:content");
  279 rssWriter.WriteAttributeString("url", item.MediaContentUrl);
  280 rssWriter.WriteAttributeString("type", "image/jpeg");
  281 rssWriter.WriteEndElement();
  282 rssWriter.WriteString("\n ");
  283 rssWriter.WriteElementString("media:title", item.MediaTitle);
  284 rssWriter.WriteString("\n ");
  285 rssWriter.WriteStartElement("media:text");
  286 rssWriter.WriteAttributeString("type", "HTML");
  287 rssWriter.WriteString(item.MediaDescription);
  288 rssWriter.WriteEndElement();
  289 rssWriter.WriteString("\n ");
  290 rssWriter.WriteStartElement("media:thumbnail");
  291 rssWriter.WriteAttributeString("url", item.MediaThumbUrl);
  292 rssWriter.WriteAttributeString("height", item.MediaThumbHeight);
  293 rssWriter.WriteAttributeString("width", item.MediaThumbWidth);
  294 rssWriter.WriteEndElement();
  295 rssWriter.WriteString("\n ");
  296 rssWriter.WriteStartElement("media:credit");
  297 rssWriter.WriteAttributeString("role", "photographer");
  298 rssWriter.WriteString(item.MediaAuthor);
  299 rssWriter.WriteEndElement();
  300 rssWriter.WriteString("\n ");
  301
  302 }
  303
  304 /**//// <summary>
  305 /// Close item element
  306 /// </summary>
  307 private void WriteItemEnd()
  308 {
  309 rssWriter.WriteString("\n ");
  310 rssWriter.WriteEndElement();
  311 rssWriter.WriteString("\n ");
  312 }
  313
  314 /**//// <summary>
  315 /// Close all the elements
  316 /// </summary>
  317 private void WriteEnd()
  318 {
  319 rssWriter.WriteEndElement();
  320 rssWriter.WriteString("\n");
  321 rssWriter.WriteEndElement();
  322 rssWriter.WriteEndDocument();
  323 }
  324
  325 #endregion
  326
  327 /**//// <summary>
  328 /// Write RSS feed
  329 /// </summary>
  330 public void WriteRSS()
  331 {
  332 WritePrologue();
  333 foreach (ItemInfo info in items)
  334 {
  335 WriteItem(info);
  336 if (hasMedia)
  337 WriteItemMedia(info);
  338 WriteItemEnd();
  339 }
  340 WriteEnd();
  341 }
  342 }
  343}
  然后使用一个FeedBase.cs类，调用上面的RssBase类中的方法和属性。代码如下。（该文件有改动，如要编译，需做相关修改）
  
   1using System.Collections.Generic;
   2using System.Configuration;
   3using System.Data;
   4using System.Text;
   5using System.Web;
   6using System.Web.UI;
   7using System.XML;
   8
   9
  10public class FeedBase : Page
  11{
  12 public void GenerateRss()
  13 {
  14
  15 IList<RssBase.ItemInfo> items = new List<RssBase.ItemInfo>();
  16
  17 // Populate items.
  18 foreach (DataRow row in rows)
  19 {
  20 RssBase.ItemInfo item = new RssBase.ItemInfo(row["Title"].ToString(), "link", row["Description"].ToString(), row["PubDate"].ToString(), row["Author"].ToString(), "guid");
  21 items.Add(item);
  22 }
  23
  24 XMLTextWriter XMLWriter = new XMLTextWriter(Response.OutputStream,
  25 Encoding.UTF8);
  26
  27 RssBase rssBase = new RssBase(XMLWriter, false, items);
  28 rssBase.WriteRSS();
  29
  30 XMLWriter.Flush();
  31 XMLWriter.Close();
  32
  33 Response.ContentEncoding = Encoding.UTF8;
  34 Response.ContentType = "text/XML";
  35 Response.Cache.SetCacheability(HttpCacheability.Public);
  36
  37 Response.End();
  38 }
  39
  40}
  41
  42
  最后，只要新建一个feed.ASPx文件，继承FeedBase类，调用该类中的GenerateRss()方法就可以轻松生成你所期望的RSS Feed :)
  有什么建议和想法，请留言！
  
  http://www.cnblogs.com/jerryhu/archive/2006/08/30/490544.HTML
    ()。