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ASP.NET AJAX integrates client script libraries with the ASP.NET 2.0 server-based development framework. This new Web development technology extends ASP.NET, offering the interactive user interface benefits of AJAX with a programming model that is more familiar to ASP.NET developers, making it very easy to add AJAX to your applications quickly and with minimal effort.
However, ASP.NET AJAX isn?t just for ASP.NET development. You can take advantage of the rich client framework to easily build client-centric Web applications that integrate with any backend data provider.
- ASP.NET AJAX enables you to take full advantage of the capabilities of the browser to deliver richer Web experiences that work on any modern browser
- ASP.NET AJAX enables ASP.NET developers to enrich their existing Web applications with incredible ease
- ASP.NET AJAX includes a rich client-side JavaScript framework that enables easy creation and reuse of script components and rich client-side behaviors.
- ASP.NET AJAX makes it super easy to consume services from ASP.NET and to build composite applications from services on the programmable Web.

What is KCallback.net Control?
KCallback.net Control, the most powerful, robust, callback control available in the market today for ASP.NET with AJAX support. Written in 100% managed C# code, KCallback.net provide callback functionality in your web applications. The KCallback.net control allows developers to AJAX-enable any ASP.NET application with writing a few lines of code. It allows to update page content without postback and loss of scroll position!
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Features
AJAX
AJAX (Asynchronous JavaScript And XML) enable your web applications to increase interactivity, speed and usability.
ASP.NET Standard controls & 3rd Party controls
KCallback.net can AJAX enable standard ASP.NET controls and 3rd party controls.
Save State
You can save the state of all the form controls during callback request by setting the SaveState property to true.
Callback Result
Callback Error
Override Output
Override the callback contents both on the server-side and client-side.
Loading Display
Disable Controls During Callback
Enable Caching
MultiArgument
You can pass multiple arguments into the Callback event handler and process them on the server-side.
Auto Callback
Initiate callbacks automatically at specified intervals in milliseconds.
User Control
You can insert the KCallback.net control into a user control. So that you are able to run two instances of the same user control on the same page.
Client-Side API
Server-Side API
Before and After execute client side event handler
XHTML Compliance
XHTML 1.0 Transitional compliant.

ASP.NET Mobile Controls XHTML Adapter Source 1.1 provides such convenient to use as well as useful XHTML development resources for ASP.NET mobile development. This package contains the source code for the XHTML adapter, one of several adapters available for use with the Microsoft ASP.NET mobile controls.

Mobile application developers may modify this source code in order to modify the way the ASP.NET mobile controls are rendered to XHTML devices.

Requirements: Windows 2000/XP/2003 Server/Vista