Force XDocument to not use namespace prefix if namespace is also defined as default

问题

I have an xml file with default namespace specified with and without namespace prefix. When I generate xml output I'm getting all xml elements prefixed. Is there way to get rid of the prefixes since I'm using the default namespace?

class Program
{
    static void Main(string[] args)
    {
        var xml =
            "<root xmlns='default-namespace' xmlns:key='default-namespace'>" +
            "  <node1></node1>" +
            "  <node2></node2>" +
            "</root>";
        var document = XDocument.Parse(xml);
        var output = document.ToString();
    }
}

The output:

<key:root xmlns="default-namespace" xmlns:key="default-namespace">
  <key:node1></key:node1>
  <key:node2></key:node2>
</key:root>

What I'd expect:

<root xmlns="default-namespace" xmlns:key="default-namespace">
  <node1></node1>
  <node2></node2>
</root>

Unfortunately I can't remove the duplicated namespace declaration. The actual xml file I'm using is provided by another party and I need to do as less modifications as possible.

回答1:

You Can Use String.Replace Method to Get The Required XML Format ...

var xml ="<root xmlns='default-namespace' xmlns:key='default-namespace'>" +
         "  <node1></node1>" +
         "  <node2></node2>" +
         "</root>";
        var document = XDocument.Parse(xml);

        var output = document.ToString().Replace("key:", string.Empty);

来源：https://stackoverflow.com/questions/32632451/force-xdocument-to-not-use-namespace-prefix-if-namespace-is-also-defined-as-defa