XmlNode.GetNamespaceOfPrefix Method (String)

 

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)

Public Overridable Function GetNamespaceOfPrefix (
	prefix As String
) As String

Parameters

prefix
Type: System.String

The prefix whose namespace URI you want to find.

Return Value

Type: System.String

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

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
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