XmlNode.GetNamespaceOfPrefix(String) Méthode

Définition

Espace de noms:

System.Xml

Assemblys:

System.Xml.dll, System.Xml.XmlDocument.dll

Assembly:

System.Xml.ReaderWriter.dll

Assembly:

System.Xml.XmlDocument.dll

Assembly:

System.Xml.dll

Assembly:

netstandard.dll

Recherche la déclaration xmlns la plus proche du préfixe spécifié qui se trouve dans la portée du nœud actuel, puis retourne l’URI de l’espace de noms dans la déclaration.

public:
 virtual System::String ^ GetNamespaceOfPrefix(System::String ^ prefix);

public virtual string GetNamespaceOfPrefix (string prefix);

abstract member GetNamespaceOfPrefix : string -> string
override this.GetNamespaceOfPrefix : string -> string

Public Overridable Function GetNamespaceOfPrefix (prefix As String) As String

Paramètres

prefix

String

Préfixe dont vous recherchez l'URI d'espace de noms.

Retours

String

URI de l'espace de noms du préfixe spécifié.

Exemples

L’exemple suivant ajoute un nouvel attribut au document XML.

#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 );
}

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);
  }
}

Option Strict
Option Explicit

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
End Class

Remarques

Cette méthode est une extension Microsoft au dom (Document Object Model).