NamespaceURI Property

XmlReader.NamespaceURI Property

 

When overridden in a derived class, gets the namespace URI (as defined in the W3C Namespace specification) of the node on which the reader is positioned.

Namespace:   System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public abstract string NamespaceURI { get; }

Property Value

Type: System.String

The namespace URI of the current node; otherwise an empty string.

Exception Condition
InvalidOperationException

An XmlReader method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”

This property is relevant to Element and Attribute nodes only.

The following example displays the local name of each node, and, if they exist, the prefix and namespace URI.

XmlReader reader = XmlReader.Create("book2.xml");

// Parse the file.  If they exist, display the prefix and 
// namespace URI of each node.
while (reader.Read()) {
  if (reader.IsStartElement()) {
    if (reader.Prefix==String.Empty)
      Console.WriteLine("<{0}>", reader.LocalName);
    else {
      Console.Write("<{0}:{1}>", reader.Prefix, reader.LocalName);
      Console.WriteLine(" The namespace URI is " + reader.NamespaceURI);
    }
  }
}       
reader.Close();

The example uses the file, book2.xml, as input.

<book xmlns:bk='urn:samples'>
  <title>Pride And Prejudice</title>
  <bk:genre>novel</bk:genre>
</book>

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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