Posts Tagged JavaScript
Processing Data From an AJAX Request
Posted by Alex Roytman in AJAX on August 5th, 2009
In a few of my previous videos, I introduced you to several concepts on how to use AJAX for web development on the IBM i (System i, iSeries, AS/400). In this video, I discuss with Robert Ferguson, an IBM i web developer, what it takes to utilize the AJAX data that is returned from the server. Robert will provide an example by showing us how AJAX data can be displayed on a Web application’s screen with little effort.
To view this video with Windows Media Player, please click here
Using an AJAX Library on the IBM i
Posted by Alex Roytman in AJAX on July 10th, 2009
Today’s video is a response to a question from one of our viewers, Wil Rikken, from McNess BV in the Netherlands.
In my video on Sending AJAX Requests to the IBM i, I suggested the use of AJAX libraries, instead of coding everything from scratch. I also demonstrated a snippet of code that uses the ajax() function that we package with all our tools for the IBM i.
Wil wanted more details on this particular function. So, I have asked David Russo, the main developer and architect of our JavaScript AJAX library, to provide all the particulars on how to use the ajax() function with POST, asynchronous mode, etc.
I am also making the AJAX Library and the corresponding documentation available as a free download in our Resources Section on the site. You can access it here.
To view this video with Windows Media Player, please click here
Generating an AJAX Response from the IBM i with RPG and PHP
Posted by Alex Roytman in AJAX on June 19th, 2009
Joining me in today’s video is one of our IBM i web developer/analysts, Hany Elemary. Together, we will continue to discuss AJAX by explaining how to generate a server response to an AJAX request from the browser. Hany will share his thoughts on how AJAX responses are similar to basic dynamic output pages that output data instead of HTML. We then go on to illustrate how AJAX response programs are built by providing examples in two popular IBM i (iSeries/AS400) web development technologies: RPG/CGI and PHP.
To view this video with Windows Media Player, please click here
How Web Application Development Evolved
Posted by Alex Roytman in Rich Internet Applications on June 5th, 2009
In this video, I go over the evolution of Web application development. You will discover how it progressed from simple HTML-based documents into Rich Internet Applications, where the user interface controls the flow of the application and makes simple requests for data and business logic. In this paradigm, server-side code is not generating new HTML pages every step of the way; therefore, applications are more cohesive and maintaining application state becomes much easier. I also explain how Rich Internet Applications (RIAs) allows for a simple way to integrate your IBM i data and business logic with external systems, data, and applications.
To view this video with Windows Media Player, please click here
Sending AJAX Requests to the IBM i (iSeries / AS400) Server
Posted by Alex Roytman in AJAX on April 10th, 2009
To fully utilize AJAX on the System i (iSeries/AS400) system, you need to learn about 3 simple things:
- How to make requests from the browser to the server
- How to respond to these requests with RPG or another web-capable language
- How to process that response within the browser
In this video, I talk about making requests, which can be tricky. Unless… you utilize an AJAX library. With an AJAX library in place, it’s really simple to make server requests either directly from HTML code or from a Rich Internet Application platform.
To view this video with Windows Media Player, please click here
AJAX on the IBM i (iSeries / AS400) – What’s the big deal?
Posted by Alex Roytman in AJAX on March 19th, 2009
If you are modernizing AS/400 RPG or Cobol applications, you should be learning and familiarizing yourself with the concept of AJAX. Why is AJAX such a big deal?
To answer this question, I introduce you to something about browser development that you may not have realized. This realization explains why AJAX is so relevant. I then provide an example of how AJAX is used to simplify form processing for both developers and end-users.
To view this video with Windows Media Player, please click here
Demystifying AJAX on the IBM i (iSeries / AS400)
Posted by Alex Roytman in AJAX on March 19th, 2009
As I talk to System i / RPG developers who are modernizing their systems, I get questions about what AJAX is all about and how it can be used when developing Web applications on the IBM i platform.
So, in this video, I introduce you to AJAX (or Asynchronous JavaScript and XML). As it turns out, the acronym is deceptive, and doesn’t really tell you much about how AJAX is used and what it really is.
To view this video with Windows Media Player, please click here