/// <summary>
/// 把RSS项转为xml节点
/// </summary>
/// <param name="item">RSS项信息</param>
/// <returns></returns>
protected XmlNode CreateRssItem(RssItem item, IO.XmlHelper xmlwr, XmlNode parent)
{
var xn = xmlwr.CreateNewNode(parent, XmlNodeType.Element, "item");
CreateNode("title", item.Title, xmlwr, xn);
CreateNode("link", item.Link, xmlwr, xn);
CreateNode("description", item.Description, xmlwr, xn);
CreateNode("pubDate", item.PubDate.ToString("yyyy/MM/dd HH:mm:ss"), xmlwr, xn);
CreateNode("category", item.Cagtegory, xmlwr, xn);
CreateNode("author", item.Author, xmlwr, xn);
CreateNode("guid", item.Guid, xmlwr, xn);
return(xn);
}
/// <summary>
/// 通过RSS内容获取整个信息
/// </summary>
/// <param name="rssContent">内容</param>
/// <returns></returns>
protected void FromRss(string rssContent)
{
var xmlwr = new IO.XmlHelper();//读取器
xmlwr.LoadXmlString(rssContent);
this.Title = GetNodeValue("title", "channel", xmlwr);
this.Description = GetNodeValue("description", "channel", xmlwr);
this.Docs = GetNodeValue("docs", "channel", xmlwr);
this.Generator = GetNodeValue("generator", "channel", xmlwr);
this.Language = GetNodeValue("language", "channel", xmlwr);
this.Link = GetNodeValue("link", "channel", xmlwr);
this.ManagingEditor = GetNodeValue("managingeditor", "channel", xmlwr);
this.WebMaster = GetNodeValue("WebMaster", "channel", xmlwr);
//获取子项
var nodes = xmlwr.GetNodeListByDelegate(delegate(XmlNode xn)
{
return(xn.Name.Equals("item", StringComparison.CurrentCultureIgnoreCase));
});
Items.Clear();
foreach (var xn in nodes)
{
if (xn.ChildNodes != null)
{
var item = new RssItem();
foreach (XmlNode chn in xn.ChildNodes)
{
switch (chn.Name.ToLower())
{
case "title":
{
item.Title = chn.InnerText;
break;
}
case "link":
{
item.Link = chn.InnerText;
break;
}
case "description":
{
item.Description = chn.InnerText;
break;
}
case "author":
{
item.Author = chn.InnerText;
break;
}
case "comments":
{
item.Comments = chn.InnerText;
break;
}
case "pubdate":
{
DateTime dt;
if (DateTime.TryParse(chn.InnerText, out dt))
{
item.PubDate = dt;
}
break;
}
case "category":
{
item.Cagtegory = chn.InnerText;
break;
}
case "guid":
{
item.Guid = chn.InnerText;
break;
}
}
}
Items.Add(item);
}
}
}
/// <summary>
/// 添加子项
/// </summary>
/// <param name="item">ＲＳＳ子项</param>
public void Add(RssItem item)
{
Items.Add(item);
}