XmlDocument.CreateElement Method

Definition

Namespace:

System.Xml

Assembly:

System.Xml.ReaderWriter.dll

Creates an XmlElement.

Overloads

CreateElement(String)	Creates an element with the specified name.
CreateElement(String, String)	Creates an XmlElement with the qualified name and NamespaceURI.
CreateElement(String, String, String)	Creates an element with the specified Prefix, LocalName, and NamespaceURI.

CreateElement(String)

Source:

XmlDocument.cs

Creates an element with the specified name.

public:
 System::Xml::XmlElement ^ CreateElement(System::String ^ name);

public System.Xml.XmlElement CreateElement (string name);

member this.CreateElement : string -> System.Xml.XmlElement

Public Function CreateElement (name As String) As XmlElement

Parameters

name

String

The qualified name of the element. If the name contains a colon then the Prefix property reflects the part of the name preceding the colon and the LocalName property reflects the part of the name after the colon. The qualified name cannot include a prefix of 'xmlns'.

Returns

XmlElement

The new XmlElement.

Examples

The following example creates a new element and adds it to the document.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   //Create the XmlDocument.
   XmlDocument^ doc = gcnew XmlDocument;
   doc->LoadXml( "<book genre='novel' ISBN='1-861001-57-5'><title>Pride And Prejudice</title></book>" );
   
   //Create a new node and add it to the document.
   //The text node is the content of the price element.
   XmlElement^ elem = doc->CreateElement( "price" );
   XmlText^ text = doc->CreateTextNode( "19.95" );
   doc->DocumentElement->AppendChild( elem );
   doc->DocumentElement->LastChild->AppendChild( text );
   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()
  {
    //Create the XmlDocument.
    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    //Create a new node and add it to the document.
    //The text node is the content of the price element.
    XmlElement elem = doc.CreateElement("price");
    XmlText text = doc.CreateTextNode("19.95");
    doc.DocumentElement.AppendChild(elem);
    doc.DocumentElement.LastChild.AppendChild(text);

    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()
        'Create the XmlDocument.
        Dim doc As New XmlDocument()
        doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>"  & _
                    "<title>Pride And Prejudice</title>"  & _
                    "</book>")
        
        'Create a new node and add it to the document.
        'The text node is the content of the price element.
        Dim elem As XmlElement = doc.CreateElement("price")
        Dim text As XmlText = doc.CreateTextNode("19.95")
        doc.DocumentElement.AppendChild(elem)
        doc.DocumentElement.LastChild.AppendChild(text)
        
        Console.WriteLine("Display the modified XML...")
        doc.Save(Console.Out)
    End Sub
End Class

Remarks

Note that the instance returned implements the XmlElement interface, so default attributes would be created directly on the returned object.

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.

According to the W3C Extensible Markup Language (XML) 1.0 recommendation, Element nodes are allowed within Document and Element nodes, and in EntityReference nodes when the EntityReference node is not a child of an Attribute node.

CreateElement(String, String)

Source:

XmlDocument.cs

Creates an XmlElement with the qualified name and NamespaceURI.

public:
 System::Xml::XmlElement ^ CreateElement(System::String ^ qualifiedName, System::String ^ namespaceURI);

public System.Xml.XmlElement CreateElement (string qualifiedName, string? namespaceURI);

member this.CreateElement : string * string -> System.Xml.XmlElement

Public Function CreateElement (qualifiedName As String, namespaceURI As String) As XmlElement

Parameters

qualifiedName

String

The qualified name of the element. If the name contains a colon then the Prefix property will reflect the part of the name preceding the colon and the LocalName property will reflect the part of the name after the colon. The qualified name cannot include a prefix of 'xmlns'.

namespaceURI

String

The namespace URI of the element.

Returns

XmlElement

The new XmlElement.

Remarks

The following C# code

XmlElement elem;
elem=doc.CreateElement("xy:item", "urn:abc");

results in an element that is equivalent to the following XML text.

<xy:item
       xmlns:xy="urn:abc"/>

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.

According to the W3C Extensible Markup Language (XML) 1.0 recommendation, Element nodes are allowed within Document and Element nodes, and in EntityReference nodes when the EntityReference node is not a child of an Attribute node.

CreateElement(String, String, String)

Source:

XmlDocument.cs

Creates an element with the specified Prefix, LocalName, and NamespaceURI.

public:
 virtual System::Xml::XmlElement ^ CreateElement(System::String ^ prefix, System::String ^ localName, System::String ^ namespaceURI);

public virtual System.Xml.XmlElement CreateElement (string? prefix, string localName, string? namespaceURI);

abstract member CreateElement : string * string * string -> System.Xml.XmlElement
override this.CreateElement : string * string * string -> System.Xml.XmlElement

Public Overridable Function CreateElement (prefix As String, localName As String, namespaceURI As String) As XmlElement

Parameters

prefix

String

The prefix of the new element (if any). String.Empty and null are equivalent.

localName

String

The local name of the new element.

namespaceURI

String

The namespace URI of the new element (if any). String.Empty and null are equivalent.

Returns

XmlElement

The new XmlElement.

Examples

The following example adds a new element to the existing XML document.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   
   // Create the XmlDocument.
   XmlDocument^ doc = gcnew XmlDocument;
   String^ xmlData = "<book xmlns:bk='urn:samples'></book>";
   doc->Load( gcnew StringReader( xmlData ) );
   
   // Create a new element and add it to the document.
   XmlElement^ elem = doc->CreateElement( "bk", "genre", "urn:samples" );
   elem->InnerText = "fantasy";
   doc->DocumentElement->AppendChild( elem );
   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() {

    // Create the XmlDocument.
    XmlDocument doc = new XmlDocument();
    string xmlData = "<book xmlns:bk='urn:samples'></book>";

    doc.Load(new StringReader(xmlData));

    // Create a new element and add it to the document.
    XmlElement elem = doc.CreateElement("bk", "genre", "urn:samples");
    elem.InnerText = "fantasy";
    doc.DocumentElement.AppendChild(elem);

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

Imports System.IO
Imports System.Xml

public class Sample 

  public shared sub Main() 

    ' Create the XmlDocument.
    Dim doc as XmlDocument = new XmlDocument()
    Dim xmlData as string = "<book xmlns:bk='urn:samples'></book>"

    doc.Load(new StringReader(xmlData))

    ' Create a new element and add it to the document.
    Dim elem as XmlElement = doc.CreateElement("bk", "genre", "urn:samples")
    elem.InnerText = "fantasy"
    doc.DocumentElement.AppendChild(elem)

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

  end sub
end class

Remarks

The following C# code

XmlElement elem;
elem=doc.CreateElement("xy", "item", "urn:abc");

creates an element equivalent to the following XML text:

<xy:item xmlns:xy="urn:abc"/>

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.

According to the W3C Extensible Markup Language (XML) 1.0 recommendation, Element nodes are allowed within Document and Element nodes, and in EntityReference nodes when the EntityReference is outside an Attribute node.

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