XML DOM

XML DOM Contents

The XML DOMDocument

The XML DOM objects

The DOM Property: value

The DOM Property: validateOnParse

The DOM Property: url

The DOM Property: text

The DOM Property: tagName

The DOM Property: resolveExternals

The DOM Property: preserveWhiteSpace

The DOM Property: prefix

The DOM Property: parseError

The DOM Property: parsed

The DOM Property: parentNode

The DOM Property: ownerDocument

The DOM Property: ondataavailable

The DOM Property: nodeValue

The DOM Property: nodeTypeString

The DOM Property: nodeTypedValue

The DOM Property: nodeType

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By :	Mark Wilson I am the creator of TopXML. I am available for international and local (Australia) contracts. I am a Solution Architect/Business Analyst. I have worked in IT in several countries (NZ, Australia, South Africa, UK) building and training teams for government and very large non-governmental organizations. I am ex-Microsoft Consulting Services. I wrote the first book on Microsoft XML published in 2000 called XML Programming with VB and ASP. Most recently I have been building tools for the SEO industry. Ask me for a 37 point SEO health-checkup for your website.
First posted :	03/24/2008
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XML DOMNode

This is one of the base objects of the DOM. Most of the other DOM objects inherit this object; therefore, you will see a lot of properties and methods repeated in each of these objects.

These objects are:

DOMDocument
XML DOM Attribute
XML DOM CDATASection
XML DOM Comment
XML DOM DocumentFragment
XML DOM DocumentType
XML DOM Element
XML DOM Entity
XML DOM EntityReference
XML DOM Notation
XML DOM ProcessingInstruction
XML DOM Text
XTLRuntime

Although all these objects inherit methods and properties from the XMLDOMNode object, they will all also have properties and methods that are unique to their function. For example, the XMLDOMElement object has extra methods for obtaining attribute information. The XMLDOMNode interface provides just the basic information, like the name of the Node, its text, etc.

To know which type of Node is currently being accessed, the nodeType property returns which type of Node you are referencing when using the XMLDOMNode object, which is explained in detail later in this chapter under the nodeType property.

Also, see the docType property for more information on Dual interfaces. This explains how to cast from one type of object to the other.

Example

The following example is the same as the example from the XMLDOMElement, except it now uses the XMLDOMNode object to return the root element of the XML file from a DOMDocument.

Dim objDOMDocument As DOMDocument
Dim objXMLDOMElement As IXMLDOMNode
Set objDOMDocument = New DOMDocument
objDOMDocument.async = False
objDOMDocument.Load "http://localhost/xmlcode/people2.dtd"
Set objXMLDOMNode = objDOMDocument.documentElement

This manuscript is an abridged version of a chapter from the Manning Publications book XML Programming with VB and ASP. This chapter looks at the Microsoft DOM objects. NOTE: Most images have been removed to increase speed and many of the code comments have also been removed for presentation. Please purchase the book to enjoy the full experience of all the chapters with images and code comments!