Gets the base URI of the current node.
(in System.Xml.dll)
Visual Basic (Declaration)
Public Overrides ReadOnly Property BaseURI As String
Dim instance As XmlTextReader
Dim value As String
value = instance.BaseURI
public override string BaseURI { get; }
public:
virtual property String^ BaseURI {
String^ get () override;
}
public override function get BaseURI () : String
.gif) Note: |
|---|
In the .NET Framework version 2.0 release, the recommended practice is to create XmlReader instances using the XmlReader..::.Create method. This allows you to take full advantage of the new features introduced in this release. For more information, see Creating XML Readers. |
A networked XML document is comprised of chunks of data aggregated using various W3C standard inclusion mechanisms and therefore contains nodes that come from different places. DTD entities are an example of this, but this is not limited to DTDs. The base URI tells you where these nodes came from. If there is no base URI for the nodes being returned (for example, they were parsed from an in-memory string), String.Empty is returned.
The following example displays the base URI for each of the nodes.
Option Explicit
Option Strict
Imports System
Imports System.IO
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim reader As XmlTextReader = Nothing
Try
'Load the reader with the XML file.
reader = New XmlTextReader("http://localhost/baseuri.xml")
'Parse the file and display the base URI for each node.
While reader.Read()
Console.WriteLine("({0}) {1}", reader.NodeType, reader.BaseURI)
End While
Finally
If Not (reader Is Nothing) Then
reader.Close()
End If
End Try
End Sub 'Main ' End class
End Class 'Sample
using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main()
{
XmlTextReader reader = null;
try
{
//Load the reader with the XML file.
reader = new XmlTextReader("http://localhost/baseuri.xml");
//Parse the file and display the base URI for each node.
while (reader.Read())
{
Console.WriteLine("({0}) {1}", reader.NodeType, reader.BaseURI);
}
}
finally
{
if (reader!=null)
reader.Close();
}
}
} // End class
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlTextReader^ reader = nullptr;
try
{
//Load the reader with the XML file.
reader = gcnew XmlTextReader( "http://localhost/baseuri.xml" );
//Parse the file and display the base URI for each node.
while ( reader->Read() )
{
Console::WriteLine( "({0}) {1}", reader->NodeType, reader->BaseURI );
}
}
finally
{
if ( reader != nullptr )
reader->Close();
}
}
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlTextReader* reader = 0;
try
{
//Load the reader with the XML file.
reader = new XmlTextReader(S"http://localhost/baseuri.xml");
//Parse the file and display the base URI for each node.
while (reader->Read())
{
Console::WriteLine(S"({0}) {1}", __box(reader->NodeType), reader->BaseURI);
}
}
__finally
{
if (reader!=0)
reader->Close();
}
}
The example uses the file, baseuri.xml, as input.
<!-- XML fragment -->
<book genre="novel">
<title>Pride And Prejudice</title>
</book>
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
XNA Framework
Supported in: 3.0, 2.0, 1.0
Reference
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