如何将图像添加到asp.net rss源

我不熟悉asp.net中的rss提要，但我很快就掌握了在c#中修改xml的方法。我想在rss2.0中添加一个图像。谢谢你的帮助

Response.Clear();

        Response.ContentType = "text/xml";

        XmlTextWriter xtwFeed = new XmlTextWriter(Response.OutputStream, Encoding.UTF8);

        xtwFeed.WriteStartDocument();

        // The mandatory rss tag

        xtwFeed.WriteStartElement("rss");

        xtwFeed.WriteAttributeString("version", "2.0");

        // The channel tag contains RSS feed details

        xtwFeed.WriteStartElement("channel");

        xtwFeed.WriteElementString("title", "The Latest goole RSS Feeds. Subscribe Today.");

        xtwFeed.WriteElementString("link", "http://googel.com");

        xtwFeed.WriteElementString("image", "http://google.com");

        xtwFeed.WriteElementString("description", "Click on the title to leave a comment.");

        xtwFeed.WriteElementString("copyright", "Copyright 2011 google.com. All rights reserved.");
        List<Blog> blogs = (List<Blog>) Blog.GetBlogs();
        foreach (var blog in blogs)
        {
            xtwFeed.WriteStartElement("item");

            xtwFeed.WriteElementString("title", blog.Title);

            xtwFeed.WriteElementString("link",blog.BlogURL);

            if(blog.PictureURL != null || blog.PictureURL != "")
            {

编辑说明：我现在有了正确的格式，但图像没有显示出来

 if(!string.IsNullOrEmpty(blog.PictureURL))
            {
                xtwFeed.WriteStartElement("image");
                xtwFeed.WriteElementString("url", blog.PictureURL);
                xtwFeed.WriteElementString("title", blog.Title);
                xtwFeed.WriteElementString("link", blog.BlogURL);
                xtwFeed.WriteEndElement();
            }

试试这个：

xtwFeed.WriteStartElement("enclosure");
 xtwFeed.WriteElementString("url", blog.PictureURL);
 xtwFeed.WriteElementString("type", image/jpeg);
 xtwFeed.WriteEndElement();

i、 e.您必须将此元素添加到rss xml中

<enclosure url="[PictureURL]" type="image/jpeg"></enclosure>

---

您可以添加代码的当前输出（rss/xml）吗？这不是我想要做的，我只是希望显示图像，而不是添加要下载的媒体项。谢谢

<enclosure url="[PictureURL]" type="image/jpeg"></enclosure>