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Calling an asp.net web service from jQuery

Posted By: Jalpesh P. Vadgama     Posted Date: August 29, 2010    Points: 0   Category :ASP.Net
As I have post it in earlier post that jQuery is one of most popular JavaScript library in the world amongst web developers Lets take a example calling ASP.NET web service with jQuery . You will see at the end of the example that how easy it is to call a web service from the jQuery. Let's create a simple Hello World web service. Go to your project right click->Add -> New Item and select web service and add a web service like following.   Now modify the code of web service like following. [WebService(Namespace = "http://tempuri.org/")][WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)][System.ComponentModel.ToolboxItem(false)]// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. [System.Web.Script.Services.ScriptService]public class HelloWorld : System.Web.Services.WebService{ [WebMethod] public string PrintMessage() { return "Hello World..This is from webservice"; }} Here please make sure that [System.Web.Script.Services.ScriptService] is un commented because this attribute is responsible for allowing web service to be called by Client side scripts. Now to call this  web service from jquery we have to include jQuery Js like following. I am already having in my project so i don't need to include in project just need to add script tag like following. <script type="t

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