Delete item from xml???

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August 31st, 2003, 12:25 PM

DaronTan

Contributing User

Join Date: Aug 2003

Location: Malaysia

Posts: 49

Time spent in forums: 31 m 23 sec
Reputation Power: 5

Delete item from xml???

Please tell me wat's wrong with the code below
I'd try both way in the asp file to delete the childnode in xml but it couldn't work

*** News.xml ***
-------------------------------------------------
<?xml version="1.0" encoding="ISO-8859-1"?>

<News>
<Article>
<Head>Test 1</Head>
<Des>Testing 123</Des>
<Date>1/9/2003</Date>
</Article>

<Article>
<Head>Test 2</Head>
<Des>Testing 321</Des>
<Date>1/9/2003</Date>
</Article>
</News>
-------------------------------------------------

*** file.asp ***
-------------------------------------------------
<%
If Request.QueryString("Action")="Delete" Then
Dim strID
Dim objXML
Dim subArticle
Dim objLst
Dim subLst

strID = CInt(Request.Form("selectAnnouncement"))

Set objXML = Server.CreateObject("Microsoft.XMLDOM")
objXML.Load(Server.MapPath("News.xml"))

**** 01 ****
Set objLst = objXML.getElementsByTagName("Article")
Set subLst = objLst.item(strID)
objXML.documentElement.removeChild subLst

**** 02 ****
'Set subArticle = objXML.documentElement.childNodes(strID)
'objXML.documentElement.removeChild (subArticle)

Set childNode = Nothing
End If
%>
-------------------------------------------------
--------------------------------

Last edited by DaronTan : August 31st, 2003 at 02:26 PM.

September 2nd, 2003, 01:06 AM

unatratnag

Average Intelligence

Join Date: Apr 2003

Location: Ohio/Chicago

Posts: 678

Time spent in forums: 10 m 22 sec
Reputation Power: 6

Of course not, getElementsByTagName returns a NodeList, here's a snipit showing you all the element names from your example. Since nodelist is not a child of the document it cannot possibly remove that item. Excuse the Javascript, it's what i'm used too and gives better error messages with XML =P

<html>
<head><title>Dom</title>
<script language="Javascript">

var objDOM;
objDOM = new ActiveXObject("MSXML.DOMDocument");
objDOM.async=false;
objDOM.load("News.xml");

var objMainNode;
objMainNode = objDOM.documentElement.firstChild;

var objNewNode;
objNewNode = objDOM.getElementsByTagName("Article")

for(i=0;i<objNewNode.length;i++){
alert(objNewNode.item(i).nodeName);
}

objDOM.removeChild(objNewNode.item(0));
alert(objDOM.xml);
</script>

You'll need to lookinto this

function deleteNode(sKey)
* Remove a "node" element matching a filtered "key" value

September 2nd, 2003, 01:19 AM

unatratnag

Average Intelligence

Join Date: Apr 2003

Location: Ohio/Chicago

Posts: 678

Time spent in forums: 10 m 22 sec
Reputation Power: 6

Here's a quick little tutorial to help you understand a little better i hope....

<html>
<head><title>Dom</title>
<script language="Javascript">

var objDOM;
objDOM = new ActiveXObject("MSXML.DOMDocument");
objDOM.async=false;
objDOM.load("News.xml");

var objMainNode;
objMainNode = objDOM.documentElement;

alert(objMainNode.xml);

var objNewNode;
objNewNode = objDOM.getElementsByTagName("Article")

for(i=0;i<objNewNode.length;i++){
alert(objNewNode.item(i).nodeName);
}
var newNodeitem, objNode, objText;
objNodeitem = objMainNode.firstChild.cloneNode(true);
objMainNode.appendChild(objNodeitem);
alert(objDOM.xml);

objMainNode.removeChild(objNodeitem);
alert(objDOM.xml);
</script>
</head>
<body>
<p>Stuff</p>
</body>
</html>

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