XmlDocument.CreateNode Method (XmlNodeType, String, String, String) (System.Xml)

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.NET Framework Class Library

XmlDocument.CreateNode Method (XmlNodeType, String, String, String)

Creates a XmlNode with the specified XmlNodeType, Prefix, Name, and NamespaceURI.

Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)

Syntax

Visual Basic

Public Overridable Function CreateNode ( _
	type As XmlNodeType, _
	prefix As String, _
	name As String, _
	namespaceURI As String _
) As XmlNode

public virtual XmlNode CreateNode(
	XmlNodeType type,
	string prefix,
	string name,
	string namespaceURI
)

Visual C++

public:
virtual XmlNode^ CreateNode(
	XmlNodeType type, 
	String^ prefix, 
	String^ name, 
	String^ namespaceURI
)

abstract CreateNode : 
        type:XmlNodeType * 
        prefix:string * 
        name:string * 
        namespaceURI:string -> XmlNode 
override CreateNode : 
        type:XmlNodeType * 
        prefix:string * 
        name:string * 
        namespaceURI:string -> XmlNode

Parameters

type: Type: System.Xml.XmlNodeType
The XmlNodeType of the new node.

prefix: Type: System.String
The prefix of the new node.

name: Type: System.String
The local name of the new node.

namespaceURI: Type: System.String
The namespace URI of the new node.

Return Value

Type: System.Xml.XmlNode
The new XmlNode.

Exceptions

Exception	Condition
ArgumentException	The name was not provided and the XmlNodeType requires a name.

Remarks

Although this method creates the new object in the context of the document, it does not automatically add the new object to the document tree. To add the new object, you must explicitly call one of the node insert methods.

The following table shows you what NodeType[row] is allowed inside another NodeType[column] according to the W3C Extensible Markup Language (XML) 1.0 recommendation (www.w3.org/TR/1998/REC-xml-19980210).

	Document	DocumentType	XmlDeclaration	Element	Attribute	Text	CDATA	Markup	EntityReference
Document	no	no	no	no	no	no	no	no	no
DocumentType	yes	no	no	no	no	no	no	no	no
XmlDeclaration	yes*	no	no	no	no	no	no	no	no
Element	yes	no	no	yes	no	no	no	no	yes***
Attribute	no	no	no	yes****	no	no	no	no	no
Text	no	no	no	yes	yes	no	no	no	yes
CDATA	no	no	no	yes	no	no	no	no	yes***
Markup**	yes	no	no	yes	no	no	no	no	no
EntityReference	no	no	no	yes	yes	no	no	no	yes

* The XmlDeclaration node must be the first child of the Document node.

** Markup includes ProcessingInstruction and Comment nodes.

*** Element and CDATA nodes are only allowed in EntityReference nodes when the EntityReference node is not a child of an Attribute node.

**** Attributes are not children of an Element node. Attributes are contained inside an attribute collection that belongs to the Element node.

This method is a Microsoft extension to the Document Object Model (DOM).

Examples

The following example adds a new element to the document.

Visual Basic


Imports System
Imports System.Xml

public class Sample 

  public shared sub Main() 

       Dim doc as XmlDocument = new XmlDocument()
       doc.LoadXml("<book>" & _
                   "  <title>Oberon's Legacy</title>" & _
                   "  <price>5.95</price>" & _
                   "</book>") 

       ' Create a new element node.
       Dim newElem as XmlNode
       newElem = doc.CreateNode(XmlNodeType.Element, "pages", "")  
       newElem.InnerText = "290"

       Console.WriteLine("Add the new element to the document...")
       Dim root as XmlElement = doc.DocumentElement
       root.AppendChild(newElem)

       Console.WriteLine("Display the modified XML document...")
       Console.WriteLine(doc.OuterXml)
   end sub
end class


using System;
using System.Xml;

public class Sample {

  public static void Main() {

       XmlDocument doc = new XmlDocument();
       doc.LoadXml("<book>" +
                   "  <title>Oberon's Legacy</title>" +
                   "  <price>5.95</price>" +
                   "</book>"); 

       // Create a new element node.
       XmlNode newElem;
       newElem = doc.CreateNode(XmlNodeType.Element, "pages", "");  
       newElem.InnerText = "290";

       Console.WriteLine("Add the new element to the document...");
       XmlElement root = doc.DocumentElement;
       root.AppendChild(newElem);

       Console.WriteLine("Display the modified XML document...");
       Console.WriteLine(doc.OuterXml);
   }
 }

Visual C++


#using <System.Xml.dll>

using namespace System;
using namespace System::Xml;
int main()
{
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( "<book>  <title>Oberon's Legacy</title>  <price>5.95</price></book>" );

   // Create a new element node.
   XmlNode^ newElem;
   newElem = doc->CreateNode( XmlNodeType::Element, "pages", "" );
   newElem->InnerText = "290";
   Console::WriteLine( "Add the new element to the document..." );
   XmlElement^ root = doc->DocumentElement;
   root->AppendChild( newElem );
   Console::WriteLine( "Display the modified XML document..." );
   Console::WriteLine( doc->OuterXml );
}

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

XmlDocument Class

CreateNode Overload

System.Xml Namespace