Looks up the closest xmlns declaration for the given prefix that is in scope for the current node and returns the namespace URI in the declaration.
Namespace: System.Xml
Assembly: System.Xml (in system.xml.dll)
Visual Basic (Declaration)
Public Overridable Function GetNamespaceOfPrefix ( _
prefix As String _
) As String
Dim instance As XmlNode
Dim prefix As String
Dim returnValue As String
returnValue = instance.GetNamespaceOfPrefix(prefix)
public virtual string GetNamespaceOfPrefix (
string prefix
)
public:
virtual String^ GetNamespaceOfPrefix (
String^ prefix
)
public String GetNamespaceOfPrefix (
String prefix
)
public function GetNamespaceOfPrefix (
prefix : String
) : String
Parameters
- prefix
Prefix whose namespace URI you want to find.
Return Value
The namespace URI of the specified prefix.
This method is a Microsoft extension to the Document Object Model (DOM).
The following example adds a new attribute to the XML document.
Option Strict
Option Explicit
Imports System
Imports System.IO
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim doc As New XmlDocument()
doc.LoadXml("<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>" & _
"<title>Pride And Prejudice</title>" & _
"</book>")
Dim root As XmlNode = doc.FirstChild
'Create a new attribute.
Dim ns As String = root.GetNamespaceOfPrefix("bk")
Dim attr As XmlNode = doc.CreateNode(XmlNodeType.Attribute, "genre", ns)
attr.Value = "novel"
'Add the attribute to the document.
root.Attributes.SetNamedItem(attr)
Console.WriteLine("Display the modified XML...")
doc.Save(Console.Out)
End Sub 'Main
End Class 'Sample
using System;
using System.IO;
using System.Xml;
public class Sample {
public static void Main() {
XmlDocument doc = new XmlDocument();
doc.LoadXml("<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>" +
"<title>Pride And Prejudice</title>" +
"</book>");
XmlNode root = doc.FirstChild;
//Create a new attribute.
string ns = root.GetNamespaceOfPrefix("bk");
XmlNode attr = doc.CreateNode(XmlNodeType.Attribute, "genre", ns);
attr.Value = "novel";
//Add the attribute to the document.
root.Attributes.SetNamedItem(attr);
Console.WriteLine("Display the modified XML...");
doc.Save(Console.Out);
}
}
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
XmlDocument^ doc = gcnew XmlDocument;
doc->LoadXml( "<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>"
"<title>Pride And Prejudice</title>"
"</book>" );
XmlNode^ root = doc->FirstChild;
//Create a new attribute.
String^ ns = root->GetNamespaceOfPrefix( "bk" );
XmlNode^ attr = doc->CreateNode( XmlNodeType::Attribute, "genre", ns );
attr->Value = "novel";
//Add the attribute to the document.
root->Attributes->SetNamedItem( attr );
Console::WriteLine( "Display the modified XML..." );
doc->Save( Console::Out );
}
import System.*;
import System.IO.*;
import System.Xml.*;
public class Sample
{
public static void main(String[] args)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml("<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>"
+ "<title>Pride And Prejudice</title>"
+ "</book>");
XmlNode root = doc.get_FirstChild();
//Create a new attribute.
String ns = root.GetNamespaceOfPrefix("bk");
XmlNode attr = doc.CreateNode(XmlNodeType.Attribute, "genre", ns);
attr.set_Value("novel");
//Add the attribute to the document.
root.get_Attributes().SetNamedItem(attr);
Console.WriteLine("Display the modified XML...");
doc.Save(Console.get_Out());
} //main
} //Sample
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
.NET Framework
Supported in: 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 2.0, 1.0