Comments
Marvin Castro wrote: Hi, I'm really interested in Google Wave. I find it useful for a plethora of things. I would appreciate an invite, and I will surely return the favor by inviting others. chaoswotaku[at]gmail[dot]com
Cloud Expo on Google News

SYS-CON.TV

2009 East
PLATINUM SPONSORS:
IBM
Smarter Business Solutions Through Dynamic Infrastructure
IBM
Smarter Insights: How the CIO Becomes a Hero Again
Microsoft
Windows Azure
GOLD SPONSORS:
Appsense
Why VDI?
CA
Maximizing the Business Value of Virtualization in Enterprise and Cloud Computing Environments
ExactTarget
Messaging in the Cloud - Email, SMS and Voice
Freedom OSS
Stairway to the Cloud
Sun
Sun's Incubation Platform: Helping Startups Serve the Enterprise
POWER PANELS:
Click For 2008 West
Event Webcasts
AJAX-Driven Websites: Under The Hood
Asynchronous JavaScript, XML, and more!

ASP.Net 2.0
ASP.Net 2.0 significantly enhances the scripting model to incorporate this methodology. They call it script callbacks instead of Ajax. It works essentially the same as I described earlier, but ASP.Net 2.0 takes it a step further by providing tools and support. For a comprehensive explanation of script callbacks in ASP.Net 2.0, take a look at this article: http://msdn.microsoft.com/msdnmag/issues/04/08/CuttingEdge/.

Considerations
1.  Ajax blurs the line between correct tiering techniques since much of the work has been moved to the client. Consideration should be given when designing such applications using an emerging methodology. The client (browser) is doing more of the processing work, and the JavaScript to accomplish this is fairly complex. It's handling keystrokes, mouse clicks, interaction with the DOM, processing of these events, and data coordination with the server.

2.  It should also be noted that many users might not want to run JavaScript on their browsers. Your Web site audience is a consideration.

3.  The name Ajax is not official. The folks at Adaptive Path are given credit for this catchy name. In ASP.Net 2.0, it is referred to as "script callbacks."

References

About Tommy Newcomb
Tommy Newcomb works for Magenic as an IT consultant in the Chicago area.
His main focus is developing Web application and E-commerce work using Microsoft technologies. He lives with his wife, Emily, and baby daughter, Jaqueline, in the Chicago suburbs.

In order to post a comment you need to be registered and logged in.

Register | Sign-in

Reader Feedback: Page 1 of 1

Hi from Kartik

Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your buddy on a walkie-talkie. You speak while he receives, and vice versa, but never at the same time. For a Web user, when he or she fills out an online form and then clicks the submit button, the entire page is posted to the Web server and the user must wait for the server to receive the request. When the server finishes processing the request, it sends the processed content back. Only then does the user's page finally refresh (see Figure 1). Ajax is an attempt to alleviate this choppy sequence of events. When the user is at an Ajax Web site the browser can call the Web server asynchronously, behind the scenes - without posting the entire page.

Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your buddy on a walkie-talkie. You speak while he receives, and vice versa, but never at the same time. For a Web user, when he or she fills out an online form and then clicks the submit button, the entire page is posted to the Web server and the user must wait for the server to receive the request. When the server finishes processing the request, it sends the processed content back. Only then does the user's page finally refresh (see Figure 1). Ajax is an attempt to alleviate this choppy sequence of events. When the user is at an Ajax Web site the browser can call the Web server asynchronously, behind the scenes - without posting the entire page.

AJAX-Driven Websites: Under The Hood
Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your buddy on a walkie-talkie. You speak while he receives, and vice versa, but never at the same time. For a Web user, when he or she fills out an online form and then clicks the submit button, the entire page is posted to the Web server and the user must wait for the server to receive the request. When the server finishes processing the request, it sends the processed content back. Only then does the user's page finally refresh (see Figure 1). Ajax is an attempt to alleviate this choppy sequence of events. When the user is at an Ajax Web site the browser can call the Web server asynchronously, behind the scenes - without posting the entire page.

AJAX-Driven Web Sites: Under The Hood. Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your buddy on a walkie-talkie. You speak while he receives, and vice versa, but never at the same time. For a Web user, when he or she fills out an online form and then clicks the submit button, the entire page is posted to the Web server and the user must wait for the server to receive the request. When the server finishes processing the request, it sends the processed content back. Only then does the user's page finally refresh (see Figure 1). Ajax is an attempt to alleviate this choppy sequence of events. When the user is at an Ajax Web site the browser can call the Web server asynchronously, behind the scenes - without posting the entire page.

Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it?

Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your buddy on a walkie-talkie. You speak while he receives, and vice versa, but never at the same time. For a Web user, when he or she fills out an online form and then clicks the submit button, the entire page is posted to the Web server and the user must wait for the server to receive the request. When the server finishes processing the request, it sends the processed content back. Only then does the user's page finally refresh (see Figure 1). Ajax is an attempt to alleviate this choppy sequence of events. When the user is at an Ajax Web site the browser can call the Web server asynchronously, behind the scenes - without posting the entire page.


Your Feedback
Kartik wrote: Hi from Kartik
SYS-CON Australia News Desk wrote: Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your b...
news desk wrote: Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your b...
AJAX News Desk wrote: AJAX-Driven Websites: Under The Hood Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex...
SYS-CON Italy News Desk wrote: AJAX-Driven Web Sites: Under The Hood. Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex...
news desk wrote: Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it?
Tommy Newcomb wrote: Recently, a number of Web sites have begun to raise some eyebrows within the developer community. What's unique about these sites is that they behave more like a desktop application than a Web application. As you interact with them, they quickly display an endless amount of information to your browser without reloading the page. At the Google Maps site for example (http://maps.google.com/), you can click on the map, zoom in, zoom out, and move around as much as you like. Your browser continues to be fed with data from the server, yet your browser doesn't have to refresh. They're not using applets, or anything like Flash, so how are they doing it? Introducing Asynchronous JavaScript + XML, also known as Ajax. To properly describe what Ajax is, it's easiest to contrast it with what it's not. For most Web sites, interaction with a Web server is simplex communication - like talking to your b...
Latest Cloud Developer Stories
CloudBench Applications, Inc. announced its financial results for the three months and nine months ending September 30, 2009. All amounts are stated in Canadian dollars unless otherwise noted. Revenues from BasicGov, the Company's cloud computing solution for local government, gr...
The new contract is an industry first, with CSC being the first Microsoft partner to lead and win a cloud computing services agreement of this scale. Under terms of the contract, CSC will provide Royal Mail Group's 30,000 employees with access to new IT services using Microsoft's...
Operates in over 170 countries and is one of the world’s leading providers of communications solutions and services. Richard Tarboton talks for MeettheBoss.TV on his role as Head of Energy & Carbon for BT and what they are doing towards reducing carbon emissions.
CA is going to put its Agile Planner software on salesforce.com’s Force.com platform in the first half to accelerate development time and give users visibility over their development initiatives to reduce time-to-market. Customers are supposed to be able to accelerate the deploym...
Despite its uncertain fate Sun soldiers on. Monday it trotted out a cloud-based multiplatform desktop as a service for K-12 and community colleges that can run Windows, the Mac OS, Linux and Solaris applications to nearly any client device, including its own Sun Ray thin clients....
Subscribe to the World's Most Powerful Newsletters
Subscribe to Our Rss Feeds & Get Your SYS-CON News Live!
Click to Add our RSS Feeds to the Service of Your Choice:
Google Reader or Homepage Add to My Yahoo! Subscribe with Bloglines Subscribe in NewsGator Online
myFeedster Add to My AOL Subscribe in Rojo Add 'Hugg' to Newsburst from CNET News.com Kinja Digest View Additional SYS-CON Feeds
Publish Your Article! Please send it to editorial(at)sys-con.com!

Advertise on this site! Contact advertising(at)sys-con.com! 201 802-3021

SYS-CON Featured Whitepapers
ADS BY GOOGLE

Breaking Cloud Computing News
CloudBench Applications, Inc. announced its financial results for the three months and nine months e...