IHasXmlNode IHasXmlNode IHasXmlNode IHasXmlNode Interface

Definición

Permite que una clase devuelva XmlNode desde el contexto o la posición actuales.Enables a class to return an XmlNode from the current context or position.

public interface class IHasXmlNode
public interface IHasXmlNode
type IHasXmlNode = interface
Public Interface IHasXmlNode

Ejemplos

En el ejemplo siguiente se GetNode usa el método para recuperar y modificar el nodo seleccionado.The following example uses the GetNode method to retrieve and modify the selected node.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::XPath;
int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->Load( "books.xml" );
   
   // Create an XPathNavigator and select all books by Plato.
   XPathNavigator^ nav = doc->CreateNavigator();
   XPathNodeIterator^ ni = nav->Select("descendant::book[author/name='Plato']");
   ni->MoveNext();
   
   // Get the first matching node and change the book price.
   XmlNode^ book = dynamic_cast<IHasXmlNode^>(ni->Current)->GetNode();
   book->LastChild->InnerText = "12.95";
   Console::WriteLine( book->OuterXml );
}

using System;
using System.IO;
using System.Xml;
using System.Xml.XPath;

public class Sample
{
  public static void Main()
  {
     XmlDocument doc = new XmlDocument();
     doc.Load("books.xml");
                         
     // Create an XPathNavigator and select all books by Plato.
     XPathNavigator nav = doc.CreateNavigator();
     XPathNodeIterator ni = nav.Select("descendant::book[author/name='Plato']");
     ni.MoveNext();

     // Get the first matching node and change the book price.
     XmlNode book = ((IHasXmlNode)ni.Current).GetNode();
     book.LastChild.InnerText = "12.95";
     Console.WriteLine(book.OuterXml);
    
  }
}
Imports System.IO
Imports System.Xml
Imports System.Xml.XPath

public class Sample

  public shared sub Main()

     Dim doc as XmlDocument = new XmlDocument()
     doc.Load("books.xml")
                         
     ' Create an XPathNavigator and select all books by Plato.
     Dim nav as XPathNavigator = doc.CreateNavigator()
     Dim ni as XPathNodeIterator = nav.Select("descendant::book[author/name='Plato']")
     ni.MoveNext()

     ' Get the first matching node and change the book price.
     Dim book as XmlNode = CType(ni.Current, IHasXmlNode).GetNode()
     book.LastChild.InnerText = "12.95"
     Console.WriteLine(book.OuterXml)
    
  end sub
end class

En el ejemplo se usa books.xml el archivo como entrada.The example uses the file books.xml as input.

<bookstore>
  <book genre="autobiography" publicationdate="1981" ISBN="1-861003-11-0">
    <title>The Autobiography of Benjamin Franklin</title>
    <author>
      <first-name>Benjamin</first-name>
      <last-name>Franklin</last-name>
    </author>
    <price>8.99</price>
  </book>
  <book genre="novel" publicationdate="1967" ISBN="0-201-63361-2">
    <title>The Confidence Man</title>
    <author>
      <first-name>Herman</first-name>
      <last-name>Melville</last-name>
    </author>
    <price>11.99</price>
  </book>
  <book genre="philosophy" publicationdate="1991" ISBN="1-861001-57-6">
    <title>The Gorgias</title>
    <author>
      <name>Plato</name>
    </author>
    <price>9.99</price>
  </book>
</bookstore>

Comentarios

La IHasXmlNode interfaz proporciona una interfaz que permite a una clase devolver un XmlNode desde el contexto o la posición actual.The IHasXmlNode interface provides an interface that enables a class to return an XmlNode from the current context or position. Lo implementan XPathNavigator los objetos que operan sobre las clases que XmlNode tienen nodos.It is implemented by XPathNavigator objects that operate over classes that have XmlNode nodes. Por ejemplo, si el XPathNavigator objeto se crea mediante un XmlDocument, puede utilizar el GetNode método para devolver el XmlNode que representa la posición actual del navegador.For example, if the XPathNavigator object is created by an XmlDocument, you can use the GetNode method to return the XmlNode representing the current position of the navigator.

Métodos

GetNode() GetNode() GetNode() GetNode()

Devuelve el XmlNode de la posición actual.Returns the XmlNode for the current position.

Se aplica a