XML DOM

XML DOM Contents

The DOM Property: nodeTypedValue

The DOM Property: nodeType

The DOM Property: nodeName

The DOM Property: namespaceURI

The DOM Property: length

The DOM Property: documentElement

The DOM Property: docType

The DOM Property: data

The DOM Property: childNodes

The DOM Property: Attributes

The DOM Property: async

The DOM Property: DOM object properties

The DOM Method: transformNodeToObject()

The DOM Method: transformNode()

The DOM Method: setNamedItem()

The DOM Method: setAttributeNode()

The DOM Method: setAttribute()

The DOM Method: send()

The DOM Method: selectSingleNode()

<< XHTML			XmlSerializer >>

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
Times viewed :	2848

nodeValue

Is a member of:

DOMDocument
XMLDOMNode
XMLDOMAttribute
XMLDOMCDATASection
XMLDOMComment
XMLDOMDocumentFragment
XMLDOMDocumentType
XMLDOMElement
XMLDOMEntity
XMLDOMEntityReference
XMLDOMNotation
XMLDOMProcessingInstruction
XMLDOMText
XTLRuntime

Syntax

vntValue = objXMLDOMAttribute.nodeValue

Remark

This property is readable and writable. The VB object browser specifies that this is the value stored in the node. For each nodeType these values can differ as shown in table .

0.0.1 nodeValue returned for nodeTypes (continued)

XML DOM Attribute	The nodeValue returns a string containing the value of the attribute. If the current attribute has child Nodes, then the string will be a concatenation of all its child Nodes. XML Example: <PERSON PERSONID="p1"> Returns: p1
XML DOM Text	The nodeValue returns a string of the contents of a text Node. XML Example: <EMAIL>markwilson@somewhere.com</EMAIL> Returns: markwilson@somewhere.com
XML DOM Comment	The nodeValue returns a string of the contents of a comment, stripping off the comment indicators and white space. XML Example: <!-- ****** Resumes for People **** --> Returns: ***** Resumes for People *******
XML DOM CDATASection	The nodeValue returns a string of the contents of a CDATASection. As mentioned under the nodeTypes properties, beware of including an entity in a CDATASection, as it does not expand. In the following example, the hash (#) key is not permitted in XML; therefore, it needs to be embed ded in a CDATA section. XML Example: <ADDRESS><![CDATA[#911 Somewhere Circle, Canberra, Australia]]></ADDRESS> Returns: #911 Somewhere Circle, Canberra, Aus tralia
XML DOM ProcessingInstruction	The nodeValue returns a string of the contents of a processing instruction, stripping off the processing instruction indicators and white space. XML Example: <?xml version="1.0" ?> Returns: xml version="1.0"
XML DOM Element XMLDOMDocument XMLDOMDocumentType XMLDOMDocumentFragment XMLDOMNotation XMLDOMEntityReference	The nodeValue returns Null.

Example

In the following example, we load a DOMDocument. Then we want to insert the Processing Instruction Node's nodeValue property into a text box (txtPI), after iterating through each Node of the DOMDocument Node collection, until we find the Processing Instruction Node.

Dim objDOMDocument As DOMDocument

Dim objNode As IXMLDOMNode

Set objDOMDocument = New DOMDocument

objDOMDocument.async = False

objDOMDocument.Load "http://localhost/xmlcode/people2.dtd"

If objDOMDocument.childNodes.length > 0 Then

For Each objNode In objDOMDocument.childNodes

Select Case objNode.nodeType

Case NODE_PROCESSING_INSTRUCTION

txtPI.Text = objNode.nodeValue

End Select

Next objNode

End If

¬ Make sure that there are childNodes after loading the document.

¬ Check the Node's nodeType enumeration for a PI Node.

¬ Display the nodeValue of the PI in a text box.

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!