asp.net ajax使用方法一

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace DownloadProxy
{
    public partial class RenameDownload : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        [System.Web.Services.WebMethod]
        //[System.Web.Script.Services.ScriptMethod()]
　　　　 //[System.Web.Services.WebMethod(MessageName="getRangRandom")]
        //[System.Web.Script.Services.ScriptMethod(UseHttpGet=true)]
        public static string AjaxTest(string name)
        {
            return "Hello," + name + "!" ;
        }
    }
}

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="RenameDownload.aspx.cs" Inherits="DownloadProxy.RenameDownload" %>

<!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></title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:scriptmanager runat="server" EnablePageMethods="true"></asp:scriptmanager>
    <script type="text/javascript">
        PageMethods.set_timeout(5000);
        PageMethods.set_defaultFailedCallback = "OnFailed";
        PageMethods.AjaxTest("knife", OnSucceed);

        function OnSucceed(Message) {
            alert(Message);
        }

        function OnFailed(ErrorHander) {
            var ErrorMessage = 'Timeout:' + ErrorHander.get_timedOut() + ',Error Message：' + ErrorHander.get_message();
            ErrorMessage = ErrorMessage + ',Exception Type：' + ErrorHander.get_exceptionType() + ',Error Loaction：' + ErrorHander.get_stackTrace();
            alert(ErrorMessage);
        }
    </script>
    </form>
</body>
</html>

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原文地址：https://www.cnblogs.com/nanfei/p/2728897.html