在ASP.NET 3.5中创建一个RSS订阅源

Question

如何使用C#在ASP.NET 3.5中创建RSS源?

哪些框架组件可以帮助.NET开发人员更轻松地发布RSS或Atom源？

与3.5相比，.NET 4是否有任何额外的功能可以使此任务更加容易？

- Hima

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含糊的问题，希望你能从我的回答中得到一些帮助。 - Younes

Answer 1

在3.5中有一个新的命名空间叫做System.ServiceModel.Syndication。

Kevin Miller 对此进行了很好的阐述，使用新的命名空间并不需要太多操作。请查看这篇文章，这里不再赘述，我认为示例代码更容易理解。

- Nick Craver

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请考虑扩展此答案，以包含其中的相关部分。 - Benjamin Gruenbaum

Answer 2

public void BindData()
{                    

    StringWriter sw = new StringWriter();
    XmlTextWriter writer = new XmlTextWriter(sw);
    XmlDocument doc = new XmlDocument();
    XmlNode docNode = doc.CreateXmlDeclaration("1.0", "UTF-8", null);

    writer.WriteStartElement("feed");
    writer.WriteAttributeString("xmlns", "http://www.w3.org/2005/Atom");
    writer.WriteString("\n");
    writer.WriteElementString("title", this.TTT + " - " + this.Title);
    writer.WriteString("\n");


    writer.WriteStartElement("link");
    writer.WriteAttributeString("href", this.Url );
    writer.WriteEndElement();

    writer.WriteElementString("id", "urn:uuid:" + Guid.NewGuid().ToString());            
    writer.WriteElementString("updated", DateTime.UtcNow.ToString("o"));


    foreach (var  item in this.lista)
    {
        writer.WriteStartElement("entry");
        writer.WriteElementString("title", item.Value.Title);

        writer.WriteStartElement("link");
        writer.WriteAttributeString("href", item.Key);
        writer.WriteEndElement();

        writer.WriteElementString("id", item.Key);
        string slikaImgUrl = item.Value.Imaga;

        if (string.IsNullOrEmpty(slikaImgUrl) == false)
        {
            writer.WriteStartElement("link");
            writer.WriteAttributeString("rel", "enclosure");
            writer.WriteAttributeString("type", "image/jpeg");
            writer.WriteAttributeString("href", slikaImgUrl);
            writer.WriteEndElement();
        }

        writer.WriteStartElement("author");
        writer.WriteElementString("name", this.Title);
        writer.WriteEndElement();

        writer.WriteStartElement("summary");
        writer.WriteAttributeString("type", "text");
        writer.WriteCData(" ");
        writer.WriteEndElement();               

        writer.WriteElementString("updated", DateTime.UtcNow.ToString("o"));
        writer.WriteElementString("published", DateTime.UtcNow.ToString("o"));
        writer.WriteEndElement();
        writer.WriteString("\n");                
    }

    writer.WriteEndElement();
    string dataOut = sw.ToString();


    Response.Clear();
    Response.ContentType = "text/xml";

    Response.Write(dataOut);
    writer.Close();
    Response.End();
}

- user1826683