AJAX : ASPX GridView - DataSet - ASMX WebMethod

Consuming a Web Service using ASP.NET Ajax

http://www.webreference.com/programming/asp/Ajax_WebService/

AJAX Web Services in C#

http://www.dreamincode.net/forums/topic/34279-introduction-to-web-services-in-c%23/

Creating a basic web service that retrieves data from a database,
then passes a populated DataSet back to the calling page to populate a GridView control with it.

http://articles.sitepoint.com/article/net-web-services-5-steps
http://www.daniweb.com/forums/thread151766.html
http://www.netomatix.com/DGSimple.aspx

Calling web service using javascript

http://sandblogaspnet.blogspot.com/2010/05/calling-web-service-using-javascript.html
http://sandblogaspnet.blogspot.com/2010/04/calling-web-service-using-javascript.html
http://sandblogaspnet.blogspot.com/2010/03/calling-web-service-using-javascript.html

Return Array from Web Service
using ScriptManager & Javascript

http://ciappara.wordpress.com/2009/07/31/return-array-from-web-service-using-scriptmanager-javascript/

SimpleWebService , [ScriptService]

http://msdn.microsoft.com/en-us/library/system.web.script.services.scriptserviceattribute.aspx

ASP.NET 2.0 AJAX Extensions 1.0 (Setup Wizard)

Brief Description

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ASP.NET AJAX is a set of technologies to add AJAX (Asynchronous JavaScript And XML) support to ASP.NET. It consists of a client-side script framework, server controls, and more.

 http://www.microsoft.com/downloads/

ASPAJAXExtSetup.msi

type or namespace name Script does not exist in the namespace System.Web

using System.Web.Extensions

http://sandblogaspnet.blogspot.com/2009/02/my-experience-with-systemwebextensions.html

Different methods to call Web Services from AJAX

 http://www.codeproject.com/KB/ajax/Ajax_and_Web_Services.aspx

 

 Client-Side Web Service Calls with AJAX Extensions

http://msdn.microsoft.com/en-us/magazine/cc163499.aspx

Understanding ASP.NET AJAX Web Services

http://www.asp.net/ajax/tutorials/understanding-asp-net-ajax-web-services

ScriptManager Enables AJAX In Your Web Apps
http://msdn.microsoft.com/en-us/magazine/cc163354.aspx#S3

Exposing Web Services to Client Script
http://msdn.microsoft.com/en-us/library/bb398998.aspx 

ASP.NET AJAX ScriptManager webservice

http://www.codedigest.com/Articles/ASPNET/387_Asynchronous_Access_To_WebServices_using_ScriptManager_in_AspNet_Ajax.aspx