Jack is Here, asp.net findings

Typical AJAX = Client Server
AJAX client side is similar to client-server computing, because it shifts much of the application logic to the client. It allows experienced javascript developers for applications that access the Internet and the computer they run on the development, during the liberation of the servers that do not focus on UI tasks. Client-side AJAX application shows that flow and UI logic will be developed in conjunction with DHTML and JavaScript to connect to any server-side
Failed, the trend towards AJAX has on businesses and the line of business applications. The developers are constantly trying to cope with ever-growing demand while improving the overall user experience. However, AJAX is a new challenge when they are used in the company, submitted.: Securing direct connections between client and server

On Server AJAX = On Server computing

The On-Server AJAX paradigm shift is lead by Visual WebGui.
The approach, marked by Guy Peled as

On-Server AJAX, opens the path for enterprises to enjoy the AJAX evolution benefits

Server based computing platforms such as Citrix and Windows Terminal Services have grown in popularity as a result of no alternatives means of supporting heavy deployments of client-server line of business applications over web. Their costs are accordingly. On-Server AJAX paradigm shift allows for the first time, to support deployments of complex AJAX line of business applications in unprecedented simplicity, by-design security, no-limit complexities all at dramatically reduced costs.

Eliminating the security hazard, facilitating enterprises usage

Client side AJAX requires the browser to connect directly to a web service or even a raw data provider. Since this is a very dangerous practice, developers usually connect to a proxy application service which understands the “context” of the request by recalling session state. There are numerous articles discussing the security challenges presented by client side AJAX. For consumer internet sites, the improved user experience has usually overridden the security concerns. However, for enterprise applications this is still a key concern.

On-Server AJAX utilizes a client side “rendering” engine which communicates with the server over XMLHttp. The rendering engine uses a proprietary protocol to incrementally update the view. The client never consumes data or services directly since all of the application logic, UI logic and data access is handled on the server. The client simply connects to the “view” on the server and therefore never compromises security. Furthermore, since a proprietary protocol is used to correlate view state between the server and the client, it’s a greater challenge to override, eavesdrop or hack.

In addition in On -Server AJAX, the only data that is delivered to the client is data that can be viewed on the client meaning there is never any sensitive data that may be required for logic or validation beyond what is rendered and seen by the user on the screen.

Developer Productivity in building complex enterprise level GUIs, as never before

While AJAX has brought a significant improvement in user experience and application complexity, it has also brought about a dramatic increase in the complexity of development and testing. Furthermore it requires developers to a number of different languages: Javascript, HTML, CSS and XML on the client as well as the server side language being used to develop the underlying business logic.

A complex web application such as Microsoft Outlook Web Access or Salesforce.com also requires serious architecting skills in order to maintain application state, security and data integrity between local cached data and server side data. While historical, page based web applications were deemed easier and cheaper to develop then their desktop counterparts, developing a complex client based AJAX web application is harder and more expensive to develop then an equivalent client-server application.

On-Server AJAX paradigm shift enables the developer to use a single language and programming model in order to design the application UI and the underlying logic. In addition it alleviates the need to understand and deal with the web’s innate statelessness. Instead On-Server AJAX offers the use of well known design patterns and tools such as WinForms to design and develop highly interactive, data rich applications with the same productivity of desktop applications.

Simplifying the architecture from a loosely coupled, stateless, multi-language/technology into a tightly coupled, object oriented, single language environment means less time is spent on architecture, development, debugging and maintenance ultimately improving ROI and TCO. In addition the layout and interaction design are not as limiting as most web oriented application development platforms.

On-Server AJAX developers also enjoy re-use of well honed skills (WinForms) and existing code which further improves productivity.

For technological Gurus opinion on On-Server AJAX productivity see:

MS MVP RICK STRAHNL on his blog: “Visual WebGui is intriguing. It’s ridiculous how productive you can be with a tool like this compared to building an ASPX page. But somehow it feels like cheating…”. ” http://west-wind.com/weblog/posts/180727.aspx

MVP ROY OSHOROVE on his blog:” “…Visual WebGui can help change the web development world and make it more usable, reachable and easier than ever…” http://weblogs.asp.net/rosherove/archive/2007/07/28/visual-web-gui-helps-me-write-in-winform-and-run-as-asp-net.aspx

Highly optimized performance (purely desktop’s) and user experience

Client side AJAX is meant to improve the responsiveness of the client. In most cases the user experience is improved, however it can have a dramatic effect on server load. Frameworks send across hundreds of lines of Javascript code over and over between requests, necessitating heavy I/O on the host web server generating a “large” bandwidth profile. Client side AJAX frameworks rely on the processing power of the client to handle caching, serialization, validation and paging. Performance varies according to the available resources on the client. Lower memory and slower CPUs could have an adverse effect on the user experience.

On- Server AJAX only need to transfer the rendering engine code once and then transfer state and data changes as required. Ultimately they require more client/server round trips; however their bandwidth profile is kept at a minimum. This results in a highly responsive application which utilizes fewer resources by the server enabling it to handle more concurrent users. In On-Server AJAX the client only handles rendering of the current view state. This means that less client side objects and data need to be processed on the client (for rendering purposes) resulting in less client side resources being required. Ultimately this ensures all users receive uniform performance regardless of their memory and CPU limitations.

MS MVP WIKTOR ZYCHLA on his blog: ‘ VWG is the undoubted winner it did a great job of serving the highest number of requests per second”

http://netpl.blogspot.com/2007/06/aspnet-ajax-framework-contest.html

Summary
As more and more applications in turn support the Internet as the de-facto deployment platform, the need for tools to grow and development on complex surfaces. AJAX is a key component of modern web applications and will continue to serve as the basis for many rich Internet applications. AJAX is just an expression, there are plenty of AJAX technologies and techniques available, and not all are created equal. As a whole, On-Server AJAX paradigm shift led by Visual WebGui provides a better way to design and develop complex, secure, robust applications in an effective and familiar way.

For samples of applications built on On-Server AJAX see:

http://www.visualwebgui.com/Community/Forum/tabid/53/forumid/-1/threadid/5247/scope/posts/Default.aspx

Bibliography:

“Cognitive Load and the Superiority of Server-Side Ajax GUI Frameworks”

http://blogs.pathf.com/agileajax/2006/08/cognitive_load_.html

“Attacking AJAX Web Applications” – Alex Stamos, Zane Lackey iSEC – http://www.isecpartners.com/files/iSEC-Attacking_AJAX_Applications.BH2006.pdf

“Ajax (programming)” – Wikipedia

http://en.wikipedia.org/wiki/Ajax_(programming)

“Server –Side AJA X for the Enterprise”

http://www.adtmag.com/article.aspx?id=21111

“What’s Ajax”

http://ajaxpatterns.org/Whats_Ajax

“Ajax alert raises security, scalability issues”

http://searchsoa.techtarget.com/originalContent/0,289142,sid26_gci1162641,00.html

AJAX is known as Asynchronous JavaScript and XML. Ajax is a type of web development method popularized by Google. Developed with the sole aim of making web development easy and simple, Ajax is a new means to create user friendly web applications. The main advantage of using Ajax technology is to generate quick responses and increase interactivity with the end users. Ajax is mainly based on JavaScript and HTTP requests. With this new technology, your JavaScript can communicate directly with the server, using JavaScript XML Http Request object. This technology uses asynchronous data transfer between the browser and the web server, which allows the web pages only to request little information from the server instead of retrieving whole pages.

Ajax technology is mainly based on Web standards, including JavaScript, XML to HTML and CSS. Ajax's main feature is that all of the web standards using this technology, clearly defined, and the same by all the major browsers support. With the help of Ajax, Internet applications, can be richer, more user-friendly. Ajax has several advantages. It can help programmers separate ways and the information provided through the website means to different aspects of the format used. Ajax-based Web site has become a big advantage as Digg, MySpace and other sites of many Web sites. Ajax also has some negative impact, mainly including the integration of the browser, search engine optimization, as well as the reliance on JavaScript.

Ajax is also called as a free framework for fast creation of interactive cross-platform web experiences. Based on server side architecture, Ajax supports interaction model. Intermediate application layer is an Ajax engine, which is added in between the user and server and which allows asynchronous user’s interaction with application. This approach has many benefits. The main features of Ajax include real-time form validation with server-side validation of codes. Ajax is quite complicated and hence it is not easy to learn Ajax. There are millions of tutorials on the web on Ajax. Some tutorials are very informative and resourceful. Most of them are written by people who have little experience and are just looking for some more traffic to their sites. Hence, you have to be very careful in choosing your tutorials.

If you want to use an Ajax application in your website, it is very important to take into consideration network latency. Network latency is the interval between the user’s request and the server’s response. If the user is unaware of Ajax properties, then it may result in assuming there is something wrong with that page. With the help of Ajax, you need not wait for your server to reload the page according to your requests. Ajax allows the page to process your request and make all the small changes accordingly without reloading an entire page. Professional Ajax Programmers use this language for several reasons. The main reason for using Ajax is to enhance the user experience, and to make web pages to behave like stand-alone applications. Ajax enabled pages load faster because they generate HTML within the browser.

A Simple AJAX control in ASP.NET 2.0 and C#

Introduction

In this article I will explain how you can easily create an AJAX enabled web site within Visual Studio 2005 utilizing C# and how to utilize the AJAX framework to add a simple control from the list of controls available in the AJAX Control Toolkit.
AJAX controls in this article, we will work hard with a "PasswordStrength” control. As mentioned above this control is in the AJAX Control Toolkit we installed in the previous article of this series. We will also learn that the PasswordStrength control can easily secure passwords as they are being entered and notify the user real time as to what else they need to add to their password in order for it to meet your requirements.
In the previous article we learned the following about AJAX and what do you mean?
“ASP.NET AJAX is a free framework for quickly creating efficient and interactive Web applications that work across all popular browsers.”

ASP.NET AJAX:

• Create interfaces with AJAX components that can be reused.
• Upgrade your existing pages with AJAX controls.
• AJAX comes with support for all modern browsers
• AJAX comes as part of Visual Studio 2008 and does not need to be downloaded and installed as in Visual Studio 2005.

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What we will learn in this article:

• How to Create an AJAX enabled Web Site
• How to utilize the PasswordStrength control

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Please Note:
AJAX functionality is integrated in ASP.NET 3.5 and does not require any additional downloads. If you are using ASP.NET 3.5 this article does not apply to you.

Getting Started with our AJAX Application

Before, in our first with our AJAX Web framework that we use to create a project to download the AJAX framework, and start coding system will require the installation of our do.
Heading in our previous article "Getting Started with AJAX, ASP.NET 2.0 and C#“ we went through the steps involved to install AJAX and how to AJAX enable Visual Studio. We explained where to go to find out about AJAX and that you could download step by step tutorials that will guide you through using every control within the AJAX Control Toolkit.
To add to your favorite browser to your bookmarks here, AJAX Web site:
http://www.asp.net/

Configure Visual Studio 2005

Please Visit Programminghelp.com For the complete article and pictorial tutorial.

http://www.programminghelp.com/web-development/ajax/creating-a-simple-ajax-control-in-asp-net-2-0-and-c/

AJAX, Asynchronous JavaScript and XML, blasted onto the software industry in the spring of 2005 and still remains the hottest story among the software developers. With its rich combination of technologies, AJAX can be used to create interactive web applications with XML or JSON based web services, using JavaScript in the browser to process the web server response. The software industry is still aiming at improving Ajax to suit the current and future needs. The role of Ajax in web design industry is remarkable that the web design industry plans its future with AJAX.

“Ajax Design Patterns” from O’Reilly provides you with the best practices you need to improve your web development projects. It does so by investigating how others have successfully dealt with conflicting design principles in the past, and then relaying that information directly to you. “Ajax Design Patterns” will also get you up to speed with core Ajax technologies such as XMLHttpRequest, the DOM and JSON.

Internet applications trend is rich, dynamic, user-friendly, process and personalized related applications. Rich Internet applications (RIA) provide a similar functionality on the network of desktop software, allowing new, highly interactive applications and user experience.
AJAX has become a development of regional integration an attractive approach. AJAX is an essential element of RIA, the technology will provide a considerable number of powerful, user-friendly web applications with the Web may appear. 2.0 standard and the enterprise RIA applications throughout the world, such as JavaFX, and AJAX technologies to play an important role. Two examples of AJAX-based RIA pest distribution maps and inputs have been recommended in the University of Florida's development.

Google Web Toolkit and other frameworks to make it easier for developers to develop, and even design an intuitive application programming interface. Google to promote smarter, more responsive and interactive through the use of its Google Maps, Gmail's AJAX applications and web design experience Web applications. Synchronous learning environment, provision of agency programs, clear user interface and interaction mechanism for teachers and students, through AJAX. Web 2.0 is the dynamic interaction of the main characteristics of knowledge sharing and collaboration. In order to achieve synchronization in the proposed learning environment, these features, we use AJAX technology, and the YouTube application programming interface (API) to design a user-friendly interface, shared learning resources diversity.

Want to know the AJAX in the web design industry, the future role – which is expected after the AJAX will become the backbone of all future web design applications. Network performance will improve the future of AJAX capabilities. AJAX, can be found in a variety of applications, especially for building Web-based applications. In the past 6 months, OpenAjax Alliance development is the future of the browser's AJAX industry wishes. AJAX technology is the future of a more interactive and intelligent network applications the best.

Java is a key platform being used by software houses the world over for Web development applications. Since there is a lot happening in the Web 2.0, a developer who has knowledge of his own programming environment like VB.NET, ASP.NET or C# or Java server side technologies can also build skills on technologies that enable the next generation web such as AJAX. There is an abundance of opportunities for people who know AJAX. Designers and developers should consider upgrading their skills to win over this opportunity. These technologies are being adopted at a fast pace, which opens a lot of career opportunities for software developers.