Category: AJAX

Once again I’m doing a lot of JavaScript, but with XML.  I have also been tasked with getting this JS to work in FireFox and IE. 

 

Some of the thing I’m having to do are the following:

Load XML

Create new Node/Elements

Edit Attribute

Find Node/Element (based on XPath)

 

//This works with IE and FireFox

function LoadXml(xml) {
 var xmlDoc = null;
 if (window.ActiveXObject) {
  xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
  xmlDoc.async = "false";
  xmlDoc.loadXML(xml);   
 } else if (document.implementation && document.implementation.createDocument) {
  parser = new DOMParser();
  xmlDoc = parser.parseFromString(xml, "text/xml");
 }
 return xmlDoc;
}

 

function FindNodeOnElementAndAttribute(xmlDoc, elementName, attributeName, attributeValue) {
 var node
 var xPath = "//" + elementName + "[@" + attributeName + "=’" + attributeValue + "’]";
 
 if (window.ActiveXObject) {
   node = xmlDoc.selectSingleNode(xPath);
  } else if (XPathEvaluator) {
  var xpe = new XPathEvaluator();
  var nsResolver = xpe.createNSResolver(xmlDoc.ownerDocument == null ? xmlDoc.documentElement : xmlDoc.ownerDocument.documentElement);
  var results = xpe.evaluate(xPath, xmlDoc, nsResolver, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
  node = results.singleNodeValue;
 }
 return node;
}

 

Resources:

XML DOM Create Nodes (W3schools.com)

 

XPath Axes(W3schools.com)

 

XML DOM Examples

 

Parsing the XML DOM

 

XML DOM Load Function

 

DevGuru – XMLDom Documentation

 

Using JavaScript to retrive XML in IE and FireFox

 

FireFox – Converting XMLObject to String

 

selectSingleNode and FireFox

 

Parsing XML in JavaScript

 

How do I load an XML formatted string into the DOM?

 

 

I have once again started working with AJAX.  About 8 months ago I was pretty deep into ASP.NET and AJAX, but since then I’ve done little with AJAX.  I’ve been finding many good reference for AJAX and do not have a common place to keep all these reference.  So for convince I’m going to keep the references here. 

 

 

Create Control Extenders

Using Visual Studio 2008, ASP.NET 3.5, and AJAX

(I went through the example in this article and everything seemed to work fine)

 

 

Building ASP.NET 3.5 AJAX Extender Controls

 

MSDN – JScript IntelliSense Overview

 

WebCast – ASP.NET AJAX Support in Visual Studio 2008

(Good video)

 

WebCast – IntelliSense for Jscript and ASP.NET AJAX (in Visual Studio 2008)

 

JScript IntelliSense: A Reference for the “Reference” Tag 

/// <reference name="MicrosoftAjax.js" />