Linq to XML - get element with namespace

Question

我不知道如何在项目元素中获取第二个链接元素。具有 xmlns="csx" 属性的那个。

我尝试指定命名空间，但它不起作用。

XNamespace linkNamespace = XNamespace.Get("http://schemas.microsoft.com/rss/2007/contentsyncextensions");  
var item = tree.Descendant("item");
item.Element(linkNamespace + "link");

XML 是：

<rss version="2.0" xmlns:nd="http://schemas.newspaperdirect.com" xmlns:rx="http://schemas.microsoft.com/rss/2007/readerextensions" xmlns:csx="http://schemas.microsoft.com/rss/2007/contentsyncextensions">
<channel>
<title>The same is true for eurozone countries, assuming that the European Central Bank acts as the lender of last resort.</title>
<link>http://library.pressdisplay.com/pressdisplay/viewer.aspx</link>
<description>Search for : "The same is true for eurozone countries, assuming that the European Central Bank acts as the lender of last resort." (provided by PressDisplay.com)</description>
<pubDate>Mon, 20 Dec 2021 00:00:00 GMT</pubDate>
<lastBuildDate>Mon, 20 Dec 2021 01:21:44 GMT</lastBuildDate>
<category>Total=9</category>
<item rx:type="Story">
<properties>
<property key="newspaperTitle">Pakistan Today (Lahore)</property>
<property key="newspaperCountry">Pakistan</property>
<property key="newspaperLanguage">English</property>
</properties>
<page>8</page>
<title>TIME TO OVERHAUL THE GLOBAL FINANCIAL SYSTEM</title>
<link>http://library.pressdisplay.com/pressdisplay/pageview.aspx?issue=88502021120900000000001001&amp;page=8&amp;articleid=3077693453&amp;previewmode=2</link>
<regionId>3077693453</regionId>
<author>JEFFREY D SACHS Jeffrey D. Sachs, a professor at Columbia University, is director of the Center for Sustainable Development at Columbia University and president of the U.N. Sustainable Development Solutions Network.</author>
<description>&lt;br/&gt;&lt;img alt="" title="" src="https://i.prcdn.co/img?regionguid=32ed40cc-778d-43ef-9b20-3a78bc7fe73d&amp;scale=67&amp;file=88502021120900000000001001&amp;regionKey=VIFA7LohZIEEFfwEXTBRgQ%3d%3d" width="80" style="float:left; margin-right:20px"/&gt; AT last month’s COP26 climate summit, hundreds of financial institutions declared that they would put trillions of dollars to work to finance solutions to climate change. Yet a major barrier stands in the way: The world’s financial system actually...</description>
<pubDate>Thu, 09 Dec 2021 00:00:00 GMT</pubDate>
<lastBuildDate xmlns="csx">Thu, 09 Dec 2021 00:00:00 GMT</lastBuildDate>
<link xmlns="csx">http://library.pressdisplay.com/pressdisplay/services/rssarticleinfo.ashx?issue=88502021120900000000001001&amp;page=8&amp;articleid=3077693453</link>
<pageimg xmlns="csx">https://i.prcdn.co/img?regionguid=32ed40cc-778d-43ef-9b20-3a78bc7fe73d&amp;scale=67&amp;file=88502021120900000000001001&amp;regionKey=VIFA7LohZIEEFfwEXTBRgQ%3d%3d</pageimg>
<imageReferences xmlns="rx">
<imageReference>
<caption>TIME TO OVERHAUL THE GLOBAL FINANCIAL SYSTEM</caption>
<credit>JEFFREY D SACHS Jeffrey D. Sachs, a professor at Columbia University, is director of the Center for Sustainable Development at Columbia University and president of the U.N. Sustainable Development Solutions Network.</credit>
<image height="120" width="80">
<link xmlns="csx">https://i.prcdn.co/img?regionguid=32ed40cc-778d-43ef-9b20-3a78bc7fe73d&amp;amp;scale=67&amp;amp;file=88502021120900000000001001&amp;amp;regionKey=VIFA7LohZIEEFfwEXTBRgQ%3d%3d</link>
</image>
</imageReference>
</imageReferences>
</item>
</channel>
</rss>

Answer 1

我想XML不正确：

<link xmlns="csx">命名空间"csx"中的元素名称"link"，而不是命名空间"http://schemas.microsoft.com/rss/2007/contentsyncextensions"中的元素名称"link"。

如果表示命名空间"http://schemas.microsoft.com/rss/2007/contentsyncextensions"，<csx:link>是正确的。

如果真的<link xmlns="csx">的意思，请使用XNamespace linkNamespace = XNamespace.Get("csx")