Ajax

Ajax Blogs and Library

Welcome to our blog. Here I am writing up some common help and queries about Ajax in our Ajax Blogs and Library

Ajax is not a programming language or a tool, but a concept. Ajax is a client-side script that communicates to and from a server/database without the need for a postback or a complete page refresh. The best definition I’ve read for Ajax is “the method of exchanging data with a server, and updating parts of a web page – without reloading the entire page.” Ajax itself is mostly a generic term for various JavaScript techniques used to connect to a web server dynamically without necessarily loading multiple pages. In a more narrowly-defined sense, it refers to the use of XmlHttpRequest objects to interact with a web server dynamically via JavaScript.

Benefits of Ajax Blogs and Library

There are 4 main benefits of using Ajax in web applications:

  1. Callbacks: Ajax is used to perform a callback, making a quick round trip to and from the server to retrieve and/or save data without posting the entire page back to the server. By not performing a full postback and sending all form data to the server, network utilization is minimized and quicker operations occur. In sites and locations with restricted bandwidth, this can greatly improve network performance. Most of the time, the data being sent to and from the server is minimal. By using callbacks, the server is not required to process all form elements. By sending only the necessary data, there is limited processing on the server. There is no need to process all form elements, process the ViewState, send images back to the client, or send a full-page back to the client.
  2. Making Asynchronous Calls: Ajax allows you to make asynchronous calls to a web server. This allows the client browser to avoid waiting for all data to arrive before allowing the user to act once more.
  3. User-Friendly: Because a page postback is being eliminated, Ajax-enabled applications will always be more responsive, faster and more user-friendly.
  4. Increased Speed: The main purpose of Ajax is to improve the speed, performance and usability of a web application. A great example of Ajax is the movie rating feature on Netflix. The user rates a movie and their personal rating for that movie will be saved to their database without waiting for the page to refresh or reload. These movie ratings are being saved to their database without posting the entire page back to the server.

Technical Aspects of Ajax

Ajax callbacks can be done by instantiating an XMLHttpRequest object in the client-side JavaScript. The XMLHttpRequest object can be used to directly call server-side objects like pages and web services. These pages and web services will either save and/or return data.

Conclusion:

I must assume that you will find some solutions for your project in our Ajax Blog Series. i will try to cover up the most things here.