Remove xmlns attribute from elements when generating XML with LINQ?

Question

I have a problem about generating sitemap.xml

My creator code is like this:

XNamespace xmlns = XNamespace.Get("http://www.sitemaps.org/schemas/sitemap/0.9");
XNamespace xsi = XNamespace.Get("http://www.w3.org/2001/XMLSchema-instance");
XNamespace schemaLocation = XNamespace.Get("http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd");

XElement urlset = new XElement(xmlns+"urlset",
                  new XAttribute(XNamespace.Xmlns + "xsi", xsi),
                  new XAttribute(xsi + "schemaLocation", schemaLocation));       

urlset.Add(new XElement("url"));

This code generates the xml file but the generated sitemap.xml url elements include an xmlns="" attribute.

<urlset xmlns="..." ><url xmlns=""/> </urlset>

All of the <url> element include that xmlns = "" attribute.

How can I solve this?

Answer 1

I think the W3 Org can summize namespaces better than I, you have qualified namespaces for all nodes and attributes above the 'url' node. When you add urlset.Add(new XElement("url")); how should it determine the namespace it is under?

I would recommend trying this out and see how it works for you:

static void Main ( string [] args )
{
    XNamespace xmlns = XNamespace.Get("http://www.sitemaps.org/schemas/sitemap/0.9");
    XNamespace xsi = XNamespace.Get("http://www.w3.org/2001/XMLSchema-instance");
    XNamespace schemaLocation = XNamespace.Get("http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd");

    XElement urlset = new XElement(xmlns+"urlset",
               new XAttribute(XNamespace.Xmlns + "xsi", xsi),
               new XAttribute(xsi + "schemaLocation", schemaLocation));       

    urlset.Add(new XElement(xmlns+"url")); // NB> We are qualifying the node
    var s = urlset.ToString( );
    Console.ReadKey( );
}

Answer 2

Try this code

XmlDocument stripDocumentNamespace(XmlDocument oldDom)
{
    XmlDocument newDom = new XmlDocument();
    newDom.LoadXml(Regex.Replace(oldDom.OuterXml,
         @"(xmlns:?[^=]*=[""][^""]*[""])", "",
         RegexOptions.IgnoreCase | RegexOptions.Multiline));
    return newDom;
}