What is Ajax DotNet?

[Pratim]

I and some of my friends have been told to learn the Ajax Dot Net. I not know anything about that.! Instead of searching on the web I thought to have some suggestions from you guys.!! can anyone explain me about the Ajax Dot Net. Also give me the information about the topics related to it.!! Please help me soon.!

[MELTRONICS]

The AJAX.NET stands for the Asynchronous Javascript which is done by using the XMLHttpRequest. The good feature of the AJAX.NET, is that from the client side JavaScript, you can call the server-side code without reloading the page. Also the frameworks have one unique AJAX feature that is they allow updating page content without programming AJAX directly. AJAX also gives almost limitless powers to the little script that could.

[Solitario]

I am assuming that you are now knowing the basic things about the Ajax.Net. So its time for you to look at the basic coding of it. For generating the JavaScript calls, AJAX.NET uses an HttpHandler. The first thing you have to do is register the handler in your web.config file, like I have done in the following coding :

<configuration>
  <system.web>
    <httpHandlers>
	   <add verb="POST,GET" path="ajaxwrapper/*.ashx" 
type="Ajax.PageHandlerFactory, Ajax" />
    </httpHandlers>  
    ...
  <system.web>
</configuration>

[Deabelos]

You now know that the AJAX.NET uses an HttpHandler. Also additional to that ajaxDotNet supports global and per call event handlers. When the individual call takes place, then the global event handlers are fired. Per call event handlers can be set on the actual call or through the defaults function. You can write the following line of code in your page_load function :

private void Page_Load(object sender, EventArgs ea){
   Ajax.Utility.RegisterTypeForAjax(this.GetType());
}

[kyosang]

Ajax DotNet is also helpful while call the server-side code from the client side JavaScript with no need for reloading the page. You can write the following code to a server-side function with the following meta tag :

[Ajax.JavascriptMethod()]
public int ServerSideAdd(int evenNumber, int oddNumber)
{
	return evenNumber + oddNumber;
}