AJAX Controls :
Client is nothing but web browser and web server are involved. Client side script updates the content of the page using the data returned from the asynchronous requests.
The AJAX Control Toolkit : This contains a rich set of controls those are used to build highly responsive and interactive AJAX - enabled web applications.
You can simple drag and drop those required controls from AJAX Control Toolkit.
AJAX improves the efficiency by performing significant parts of web page's processing in the browser.
AJAX uses a combination of HTML and CSS to mark up and style data.
Web service consumption is very powerful in AJAX.
In this article, we are going to explore following controls:
1) AutoComplete Control.
2) Accordion Control.
1) AutoComplete Control: It is an ASP.net AJAX extender that can be attached to any Textbox control.
AutoComplete extender pulls words starting with the contents of the textbox.
When user types more content than the specified minimum word length , pop - up shows words or phrases starting with that value.
Caching is turned on so typing the same prefix multiple times result in only one call.
2) Accordion Control: It is a web control that allows you to provide multiple panes and display them one at a time. It contains AccordionPane.
Each AccordionPane control has a template for its Header and its content.
It is possible to keep track of the selected pane so it stays visible across postbacks.
Accordion functionality is similar to having several Collapsible Panels where only one can be expanded at a time.
ASP.net 4.0 has introduced many improvement features in AJAX lirary such as inbuilt JQuery support.
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.