Sample ASP.NET AJAX

This is application shows an example of calling a web service from ASP.NET AJAX web-service. Here's what you will need to do: 1) Create a web service. This is a class which references the following namespaces in

using System;

using System.Collections.Generic;

using System.Web;

using System.Web.Services;

namespace EliasNameSpace

{

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

[System.Web.Script.Services.ScriptService] //allow javascript calls public class TestService : System.Web.Services.WebService

{

[WebMethod]

public string HelloWorld()

{

return "Hello World";

}

}

}

2) Reference the web service in your page

<asp:ScriptManager ID="ScriptManager1" runat="server">

<Services><asp:ServiceReference Path="~/TestService.asmx" />Services>

asp:ScriptManager>

3) Call the webservice in your javascript code

function onSuccess(result, context, methodName) {

var str ="Success. Your result is: " + result;

str += "

Context: " + context + " "

+ "methodName: " + methodName + "";

$get("msgDiv").innerHTML += str;

}

function onFail(errror, context, methodName) {

var str = "Failed. Error: " + errror;

str += "

Context: " + context + " "

+ "methodName: " + methodName + "";

$get("msgDiv").innerHTML += str;

}

//this calls the webservice, onSuccess is the function called if it succeeded, onFail is called if it failed.

EliasNameSpace.TestService.HelloWorld(onSuccess, onFail);

If you'd like a working example: Download Sample Ajaxed Web Service Application