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XmlAttribute.BaseURI Property

Gets the base Uniform Resource Identifier (URI) of the node.

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

Public Overrides ReadOnly Property BaseURI As String

Property Value

Type: System.String
The location from which the node was loaded or String.Empty if the node has no base URI. Attribute nodes have the same base URI as their owner element. If an attribute node does not have an owner element, BaseURI returns String.Empty.

A networked XML document is comprised of chunks of data aggregated using various World Wide Web Consortium (W3C) standard inclusion mechanisms and therefore contains nodes that come from different places. The BaseURI tells you where these nodes came from.

For additional information on BaseURI and how it behaves with other node types, see XmlNode.BaseURI.

This property is a Microsoft extension to the Document Object Model (DOM).

The following example displays information on the attribute node, including its base URI.

Option Explicit
Option Strict

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample

    Public Shared Sub Main()
        'Create the XmlDocument. 
        Dim doc As New XmlDocument()

        'Display information on the attribute node. The value 
        'returned for BaseURI is 'http://localhost/baseuri.xml'. 
        Dim attr As XmlAttribute = doc.DocumentElement.Attributes(0)
        Console.WriteLine("Name of the attribute:  {0}", attr.Name)
        Console.WriteLine("Base URI of the attribute:  {0}", attr.BaseURI)
        Console.WriteLine("The value of the attribute:  {0}", attr.InnerText)
    End Sub 'Main 
End Class 'Sample

The sample uses the file, baseuri.xml, as input.

<!-- XML fragment -->
<book genre="novel">
  <title>Pride And Prejudice</title>

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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