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XNamespace.Xmlns Property

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Definition

Namespace:
System.Xml.Linq
Assembly:
System.Xml.XDocument.dll
Assembly:
System.Xml.Linq.dll
Assembly:
netstandard.dll
Source:
XNamespace.cs
Source:
XNamespace.cs
Source:
XNamespace.cs

Gets the XNamespace object that corresponds to the xmlns URI (http://www.w3.org/2000/xmlns/).

public:
 static property System::Xml::Linq::XNamespace ^ Xmlns { System::Xml::Linq::XNamespace ^ get(); };
public static System.Xml.Linq.XNamespace Xmlns { get; }
static member Xmlns : System.Xml.Linq.XNamespace
Public Shared ReadOnly Property Xmlns As XNamespace

Property Value

XNamespace

The XNamespace that corresponds to the xmlns URI (http://www.w3.org/2000/xmlns/).

Examples

The following example shows how to add a namespace to an XML tree. The namespace for the attribute that declares the namespace is the namespace returned by this property.

XNamespace aw = "http://www.adventure-works.com";
XElement root = new XElement(aw + "Root",
    new XAttribute(XNamespace.Xmlns + "aw", "http://www.adventure-works.com"),
    new XElement(aw + "Child", "content")
);
Console.WriteLine(root);

Dim root = <aw:Root xmlns:aw="http://www.adventure-works.com">
               <aw:Child>content</aw:Child>
           </aw:Root>
Console.WriteLine(root)

In Visual Basic, the preferred idiom is:

Imports <xmlns:aw='http://www.adventure-works.com'>

Module Module1
    Sub Main()
        Dim root As XElement = _
            <aw:Root>
                <aw:Child>content</aw:Child>
            </aw:Root>
        Console.WriteLine(root)
    End Sub
End Module

This example produces the following output:

<aw:Root xmlns:aw="http://www.adventure-works.com">
  <aw:Child>content</aw:Child>
</aw:Root>

Remarks

When you declare namespaces, the namespace attributes themselves are in the xmlns namespace. The W3C standard specifies that this namespace does not have to be declared as an attribute in the XML tree. It is a reserved namespace that is always automatically available in the XML parser.

Applies to

See also