XML DOM

XML DOM Contents

The DOM Method: getElementsByTagName()

The DOM Method: getAttributeNode()

The DOM Method: getAttribute()

The DOM Method: createNode()

The DOM Method: Create - other examples

The DOM Method: cloneNode()

The DOM Method: appendChild()

The DOM Method: abort()

The DOM Method: DOM object methods

The Node Type: NODE_TEXT

The Node Type: NODE_PROCESSING_INSTRUCTION

The Node Type: NODE_NOTATION

The Node Type: NODE_ENTITY_REFERENCE

The Node Type: NODE_ENTITY

The Node Type: NODE_ELEMENT

The Node Type: NODE_DOCUMENT_TYPE

The Node Type: NODE_DOCUMENT

The Node Type: NODE_COMMENT

The Node Type: NODE_CDATA_SECTION

<< 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 :	656

hasChildNodes()

Is a member of:

DOMDocument
XML DOM Node
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

Syntax

blnValue = objXMLDOMNode.hasChildNodes()

Remark

This method is read-only. This method returns a boolean indicating whether the current Node has any children. It can be used instead of the length property, as explained earlier in this chapter.

Example

We have snatched the following example from the length property and changed it to show how to use the hasChildNodes() method.

In this example, we test the hasChildNodes() method to see if a DOMDocument has loaded properly. If the hasChildNodes() returned True, then we can proceed with the rest of the code working with the DOMDocument object.

Dim objDOMDocument As DOMDocument

Dim objNode As IXMLDOMNode

Set objDOMDocument = New DOMDocument

objDOMDocument.async = False

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

If objDOMDocument.hasChildNodes Then

`run rest of code here

End If

Our code has loaded the XML from our main XML example. The hasChildNodes() method returns True; therefore, we can proceed with our DOMDocument.

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!