MSXML, continued - The InsertLast() Method
(Page 2 of 5 )
The InsertLast() method is called when the user wants to place information about the new CD at the bottom of the XML document. Here’s the InsertLast() method:
function InsertLast()
{
var objNewNode = LoadNewNode();
if(objNewNode == null)
{
return;
}
var root = objXML.documentElement;
root.appendChild(objNewNode);
document.all("xmlresult").value = objXML.xml;
}
You’ll notice that the InsertLast() method is nearly the same as the InsertFirst() method, except the appendChild() method is called instead of calling the insertBefore() method. The appendChild() method places information about the new CD at the end of the XML document.
The appendChild() method requires one argument, which is reference to information about the new CD. This reference is returned by the LoadNewNode() method.
Here’s the XML document after calling the InsertLast() method. You’ll notice that the first and last items in the XML document are the same CD because in our example we selected the InsertFirst option and then the InsertLast option. Each placed the same CD into different areas of the XML document. We’ve shown it this way to demonstrate that you can continue altering the document to get it into its desired final state. For the remaining examples, refresh the document using the LoadDocument() function so it only shows the current change.
<?xml version="1.0"?>
<!DOCTYPE catalog SYSTEM "catalog.dtd"> <catalog >
<cd upc="75596280822">
<artist>Phish</artist>
<title>Live Phish, Vol. 15</title>
<price>26.99</price>
<label>ELEKTRA/WEA</label>
<date>2002-10-29</date>
</cd>
<cd upc="602498678299">
<artist>U2</artist>
<title>How to Dismantle an Atomic Bomb</title>
<price>13.98</price>
<label>Interscope Records</label>
<date>2004-11-23</date>
</cd>
<cd upc="75679244222">
<artist>Led Zeppelin</artist>
<title>Physical Graffiti</title>
<price>22.99</price>
<label>Atlantic</label>
<date>1994-08-16</date>
</cd>
<cd upc="75678367229">
<artist>Rush</artist>
<title>Rush in Rio</title>
<price>13.98</price>
<label>Atlantic</label>
<date>2003-10-21</date>
</cd>
<cd upc="74646938720">
<artist>Billy Joel</artist>
<title>Songs in the Attic</title>
<price>10.99</price>
<label>Sony</label>
<date>1998-10-20</date>
</cd>
<cd upc="75678263927">
<artist>Led Zeppelin</artist>
<title>Houses of the Holy</title>
<price>10.98</price>
<label>Atlantic</label>
<date>1994-07-19</date>
</cd>
<cd upc="8811160227">
<artist>Jimi Hendrix</artist>
<title>Are You Experienced?</title>
<price>12.99</price>
<label>Experience Hendrix</label>
<date>1997-04-22</date>
</cd>
<cd upc="74640890529">
<artist>Bob Dylan</artist>
<title>The Times They Are A-Changin'</title>
<price>9.99</price>
<label>Sony</label>
<date>1990-10-25</date>
</cd>
<cd upc="75596280822">
<artist>Phish</artist>
<title>Live Phish, Vol. 15</title>
<price>26.99</price>
<label>ELEKTRA/WEA</label>
<date>2002-10-29</date>
</cd>
</catalog>
Next: The InsertBefore() Function >>
More XML Articles
More By McGraw-Hill/Osborne
|
 This article is excerpted from chapter 10 of XML DeMYSTified, written by Jim Keogh and Ken Davidson (McGraw-Hill/Osborne, 2005; ISBN: 0072262109). Check it out today at your favorite bookstore. Buy this book now.
|
|
