A preliminary understanding of asynchronous JavaScript and XML (AJAX)

Ajax|javascript|xml

Download Ajax.dll http://ajax.schwarz-interactive.de/csharpsample/default.aspx

The first example suggests a reference to its quickguide, it feels good
and quote here.
AJAX. Net Wrapper Quick Usage Guide
Karl seguin-http://www.openmymind.net/-Copyright 2005

(View Ajaxguide.doc For more detailed information)

Step 1-
Create a reference to the Ajax.dll file

Step 2-set up the HttpHandler
In the web.config, set up the HttpHandler, like:

...

Step 3-
In the Page_Load event, call the following function:

' VB.net
Public Class Index
Inherits System.Web.UI.Page

Private Sub Page_Load (sender as Object, e as EventArgs) Handles MyBase.Load
Ajax.Utility.RegisterTypeForAjax (GetType (Index))
'...
End Sub
'...
End Class

C#
public class index:system.web.ui.page{
private void Page_Load (object sender, EventArgs e) {
Ajax.Utility.RegisterTypeForAjax (typeof (Index));
//...
}
//...
}

Step 4-
In the codebehind of your page, add functions (like your normally would) that you ' d like to be able to asynchrounsly called  by Client-side scripting. Mark functions with the Ajax.javascriptmethodattribute ():

C#
[Ajax.ajaxmethod ()]
public int Serversideadd (int firstnumber, int secondnumber)
{
return firstnumber + secondnumber;
}

' VB.net
_
Public Function Serversideadd (ByVal firstnumber As Integer, ByVal secondnumber As Integer) As Integer
return Firstnumber + Secondnumber
End Function

The wrapper would automatically create a JavaScript function named "Serversideadd" which accepts to parameters. When called, this server-side function is called and the result returned.

Step 5-
Using JavaScript, you can invote the Serversideadd function like your would any other JavaScript function.  You can call it using the two parameters, or optionally pass a call back function. The name of the "function is", by default, ., such as Index.servers Ideadd:

Alertindex.serversideadd (100,99));

OR

Index.serversideadd (100,99, serversideadd_callback);

function Serversideadd_callback (response) {
alert (Response.value);
}

The response exposes three properties, error, value and request.

Note This can return to more complex objects the simple types.

The demo For additional information:
Http://ajax.schwarz-interactive.de/csharpsample/default.aspx

It's the first example you've ever modeled, and hopefully more people will be involved.