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XmlDocument::CreateElement Method (String^, String^, String^)

 

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

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

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

Parameters

prefix
Type: System::String^

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

localName
Type: System::String^

The local name of the new element.

namespaceURI
Type: System::String^

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

Return Value

Type: System.Xml::XmlElement^

The new XmlElement.

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 (www.w3.org/TR/1998/REC-xml-19980210), 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).

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 );
}

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
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