How to create XElement with namespaces

Question

I need to generate xml like that:

<urlset xmlns:video="http://www.google.com/schemas/sitemap-video/1.1" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"> <url> <loc>http://blabla</loc> <video:video> <video:player allow_embed="yes">http://blablabla</video:player_loc> </video:video> </url>

I can't figure out the way to work with namespaces. I can't even create urlset element properly, I'm trying:

 XNamespace _defaultNamespace = "http://www.sitemaps.org/schemas/sitemap/0.9"; XNamespace _videoNameSpace = "http://www.google.com/schemas/sitemap-video/1.1"; new XElement("urlset",new XAttribute(_defaultNamespace+"video",_defaultNamespace))

and it generates:

<?xml version="1.0" encoding="utf-8" standalone="yes"?> <urlset p1:video="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:p1="http://www.sitemaps.org/schemas/sitemap/0.9">

what's that p1 thing?

Show us what you have tried.

deathismyfriend
– deathismyfriend

2013-10-31 22:57:05 +00:00
Commented Oct 31, 2013 at 22:57 — deathismyfriend
– deathismyfriend, Commented Oct 31, 2013 at 22:57

Sergey Berezovskiy · Accepted Answer · 2013-10-31 23:08:14Z

Namespace attributes are in xmlns namespace, so you should use XNamespace.Xmlns+ attributeName for declaring namespaces:

XNamespace ns = "http://www.sitemaps.org/schemas/sitemap/0.9"; XNamespace video = "http://www.google.com/schemas/sitemap-video/1.1"; var urlset = new XElement(ns + "urlset", new XAttribute(XNamespace.Xmlns + "video", video));

Produces

<urlset xmlns:video="http://www.google.com/schemas/sitemap-video/1.1" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" />

Complete xml generation will look like:

var urlset = new XElement(ns + "urlset", new XAttribute(XNamespace.Xmlns + "video", video), new XElement(ns + "url", new XElement(ns + "loc", "http:/blabla"), new XElement(video + "video", new XElement(video + "player", new XAttribute("allow_embed", "yes"), "http:/blabla"))));

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