Linq XML如何忽略html代碼？

Question

我正在使用Xelement-Linq to XML來解析一些RSS提要。

RSS例：

<item> 
     <title>Waterfront Ice Skating</title> 
     <link>http://www.eventfinder.co.nz/2011/sep/wellington/wellington-waterfront-ice-skating?utm_medium=rss</link> 
     <description>&lt;p&gt;An ice skating rink in Wellington for a limited time only! 

Enjoy the magic of the New Zealand winter at an outdoor skating experience with all the fun and atmosphere of New York&amp;#039;s Rockefeller Centre or Central Park, ...&lt;/p&gt;&lt;p&gt;Wellington | Friday, 30 September 2011 - Sunday, 30 October 2011&lt;/p&gt;</description> 
     <content:encoded><![CDATA[Today, Wellington Waterfront<br/>Wellington]]></content:encoded> 
     <guid isPermalink="false">108703</guid> 
     <pubDate>2011-09-30T10:00:00Z</pubDate> 
     <enclosure url="http://s1.eventfinder.co.nz/uploads/events/transformed/190501-108703-13.jpg" length="5000" type="image/jpeg"></enclosure> 
    </item> 

其所有工作正常，但描述元素有很多的HTML標記，我需要刪除。

說明：

<description>&lt;p&gt;An ice skating rink in Wellington for a limited time only! 

    Enjoy the magic of the New Zealand winter at an outdoor skating experience with all the fun and atmosphere of New York&amp;#039;s Rockefeller Centre or Central Park, ...&lt;/p&gt;&lt;p&gt;Wellington | Friday, 30 September 2011 - Sunday, 30 October 2011&lt;/p&gt;</description> 

誰能幫助呢？

Answer 1

如果它是一個RSSFeed你爲什麼不結合使用System.ServiceModel.Syndication的SyncicationFeed用XML閱讀器將處理您的XmlEncoded發出

  using (XmlReader reader = XmlReader.Create(@"C:\\Users\\justMe\\myXml.xml")) 
      { 
       SyndicationFeed myFeed = SyndicationFeed.Load(reader); 
       ... 
      } 

然後刪除HTML標籤用正則表達式爲建議由@nemesv，或使用類似這樣的東西

public static string StripHTML(this string htmlText) 
    { 
     var reg = new Regex("<[^>]+>", RegexOptions.IgnoreCase); 
     return HttpUtility.HtmlDecode(reg.Replace(htmlText, string.Empty)); 
    } 

Answer 2

首先，您應該使用System.Net.HttpUtility.HtmlDecode HtmlDecode descirptoin的內容。這將編碼的&lt ;p&gt ;替換爲<p> 然後您可以使用正則表達式刪除HTML標記：Using C# regular expressions to remove HTML tags或其他一些HTML解析庫。