JSON 简介

using System;
using System.Data;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;
using System.Web.Script.Services;
using System.Web.Script.Serialization;

namespace AJAXEnabledWebApplication
{
    /// <summary>
    /// Summary description for AjaxWebService
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    [GenerateScriptType(typeof(Ajax))]
    [ScriptService]
    public class AjaxWebService : System.Web.Services.WebService
    {

        [WebMethod]
        public Ajax HelloAjax()
        {
            return new Ajax();
        }
    }
    public class Ajax
    {
        public string Name = "ASP.NET AJAX";
        public string Version = "1.0.0.0";
        public string Description = "ScriptService And ScriptMethod";
        public DateTime Now = DateTime.Now;
    }
}

    <asp:ScriptManager ID="ScriptManager1" runat="server">
         <Services>
              <asp:ServiceReference Path="AjaxWebService.asmx" />
         </Services>
    </asp:ScriptManager>
    <script type="text/javascript">
        document.getElementById("HelloButton").onclick = function()
        {
            AJAXEnabledWebApplication.AjaxWebService.HelloAjax(SucceededCallback);
        };
        function SucceededCallback(result)
        {
            alert(result.Name);
            alert(result.Version);
            alert(result.Now);
        }
    </script>