XmlElement.CloneNode(Boolean) Method

Reference

Definition

Namespace:: System.Xml

Assemblies:: System.Xml.dll, System.Xml.XmlDocument.dll

Assemblies:: netstandard.dll, System.Xml.ReaderWriter.dll

Assembly:: System.Xml.XmlDocument.dll

Assembly:: System.Xml.ReaderWriter.dll

Assembly:: System.Xml.dll

Assembly:: netstandard.dll

Source:: XmlElement.cs

Source:: XmlElement.cs

Source:: XmlElement.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Creates a duplicate of this node.

public:
 override System::Xml::XmlNode ^ CloneNode(bool deep);

public override System.Xml.XmlNode CloneNode(bool deep);

override this.CloneNode : bool -> System.Xml.XmlNode

Public Overrides Function CloneNode (deep As Boolean) As XmlNode

Parameters

deep: Boolean

true to recursively clone the subtree under the specified node; false to clone only the node itself (and its attributes if the node is an XmlElement).

Returns

XmlNode

The cloned node.

Examples

The following example creates a new element, clones it, and then adds both elements into an XML document.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->Load( "2books.xml" );
   
   // Create a new element.
   XmlElement^ elem = doc->CreateElement( "misc" );
   elem->InnerText = "hardcover";
   elem->SetAttribute( "publisher", "WorldWide Publishing" );
   
   // Clone the element so we can add one to each of the book nodes.
   XmlNode^ elem2 = elem->CloneNode( true );
   
   // Add the new elements.
   doc->DocumentElement->FirstChild->AppendChild( elem );
   doc->DocumentElement->LastChild->AppendChild( elem2 );
   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.Load("2books.xml");

    // Create a new element.
    XmlElement elem = doc.CreateElement("misc");
    elem.InnerText = "hardcover";
    elem.SetAttribute("publisher", "WorldWide Publishing");

    // Clone the element so we can add one to each of the book nodes.
    XmlNode elem2 = elem.CloneNode(true);

    // Add the new elements.
    doc.DocumentElement.FirstChild.AppendChild(elem);
    doc.DocumentElement.LastChild.AppendChild(elem2);

    Console.WriteLine("Display the modified XML...");
    doc.Save(Console.Out);
  }
}

Option Explicit
Option Strict

Imports System.IO
Imports System.Xml

Public Class Sample
    
    Public Shared Sub Main()
        
        Dim doc As New XmlDocument()
        doc.Load("2books.xml")
        
        ' Create a new element.
        Dim elem As XmlElement = doc.CreateElement("misc")
        elem.InnerText = "hardcover"
        elem.SetAttribute("publisher", "WorldWide Publishing")
        
        ' Clone the element so we can add one to each of the book nodes.
        Dim elem2 As XmlNode = elem.CloneNode(True)
        
        ' Add the new elements.
        doc.DocumentElement.FirstChild.AppendChild(elem)
        doc.DocumentElement.LastChild.AppendChild(elem2)
        
        Console.WriteLine("Display the modified XML...")
        doc.Save(Console.Out)
    End Sub
End Class

Remarks

This method serves as a copy constructor for nodes. The duplicate node has no parent (ParentNode returns null).

Applies to

Продукт	Версии
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1
UWP	10.0

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