如何在xml描述中分隔img标签(RSS FEED) [英] How to separate img tags in description of xml (RSS FEED)
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问题描述
我无法从RSS提要中检索图像,即在说明中.
I am unable to retrieve images from RSS feeds i.e., in description.
我正在使用以下代码来检索信息.
I am using the following code to retrieve information.
var rssFeed = from el in doc.Elements("rss").Elements("channel").Elements("item")
orderby datetime(el.Element("pubDate").Value) descending
select new
{
Title = el.Element("title").Value,
Link = el.Element("link").Value,
Description =el.Element("description").Value,
PubDate = datetime(el.Element("pubDate").Value),
};
当显示说明"时,文本和图像都将同时显示 我想在描述中将文本和图像分开.能否请让我知道如何进行.
When Description is being displayed, both text and image are being displayed togather I want to separate text and image in description. Can you please let me know how to proceed.
使用的RSS提要: http://news.yahoo.com/rss/
推荐答案
var rssFeed = from el in doc.Elements("rss").Elements("channel").Elements("item")
orderby datetime(el.Element("pubDate").Value) descending
select new
{
Title = el.Element("title").Value,
Link = el.Element("link").Value,
Description =replace_other(el.Element("description").Value),
Image= regex(el.Element("description").Value),
PubDate = datetime(el.Element("pubDate").Value),
};
lvFeed.DataSource = rssFeed;
lvFeed.DataBind();
}
protected string regex(string source)
{
var reg1 = new Regex("src=(?:\"|\')?(?<imgSrc>[^>]*[^/].(?:jpg|bmp|gif|png))
(?:\"|\')?");
var match1 = reg1.Match(source);
if (match1.Success)
{
Uri UrlImage = new Uri(match1.Groups["imgSrc"].Value, UriKind.Absolute);
return UrlImage.ToString();
}
else
{
return null;
}
}
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