在VS2008里已经集成了AJAX的功能，不用像VS2005那样需要单独安装。另外VS2008终于是有JS提示了，哈哈，好玩！
HelloService.asmx
using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Linq;using System.Web;using System.Web.Services;using System.Web.Services.Protocols;using System.Xml.Linq;namespace Test
{
/**//// <summary>
/// HelloService 的摘要说明
/// </summary> [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] [ToolboxItem(false)] // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。 [System.Web.Script.Services.ScriptService] public class HelloService : System.Web.Services.WebService { public HelloService() { } [WebMethod] public string HelloWorld(int num1,int num2) { int sum = 0; try { sum = num1 + num2; } catch (Exception ex) { return ex.Message; } return "The sum is:" + sum; } }
}Test.jsfunction SayClick(param1,param2){ var num1= $get(param1).value; var num2= $get(param2).value; //命名空间名.类名.函数名(参数列表,回调成功函数名,回调失败函数名) Test.HelloService.HelloWorld(num1,num2,CallBack_Succeed,CallBack_Failed);}//回调成功函数function CallBack_Succeed(resultText){ $get("result").innerHTML=resultText;}//回调失败函数function CallBack_Failed(error){ //error.get_message()是获取异常信息,由框架提供的 $get("result").innerHTML=error.get_message();}AjaxStudy.aspx<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AjaxStudy.aspx.cs" Inherits="Test.AjaxStudy" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>无标题页</title></head><body> <form id="form1" runat="server"> <div> <asp:ScriptManager ID="ScriptManager1" runat="server"> <Scripts> <asp:ScriptReference Path="~/JsFile/Test.js" /> </Scripts> <Services> <asp:ServiceReference Path="~/HelloService.asmx" /> </Services> </asp:ScriptManager> <br /> <asp:TextBox ID="txtNum1" runat="server"></asp:TextBox> +<asp:TextBox ID="txtNum2" runat="server"></asp:TextBox> <br /> <br /> <input id="btnSayHello" type="button" value="AJAX加法" onclick="SayClick('<%=txtNum1.ClientID %>','<%=txtNum2.ClientID %>')" /> <div id="result"></div> </div> </form></body></html>