javascript, json, xml

【转自】http://www.cnblogs.com/chenxizhang/archive/2010/01/13/1646255.html
在网络编程中，我们经常需要用到javascript,这些客户端脚本又经常需要与服务端进行异步的通讯，提交并接收数据。下面这个例子演示了如何设计服务，如何编写脚本
1. 服务端，这是一个ashx文件
需要添加两个引用 System.Runtime.Serialization和System.ServiceModel.Web
using System.Web;
using System.Web.Services;
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
using System.IO;
using System.Text;
namespace DynamicTableSample
{
/// <summary>
/// $codebehindclassname$ 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Test : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
//解析客户端传过来的数据
var c = context.Request["data"];
var ser = new DataContractJsonSerializer(typeof(Customer));
Customer customer =ser.ReadObject(new MemoryStream(Encoding.UTF8.GetBytes(c))) as Customer;//反序列化，将字符串转换为对象
//返回结果
ActionResult result = new ActionResult() { ResultCode = 200, Message = "该操作已经成功" };
var ser2 = new DataContractSerializer(typeof(ActionResult));
//直接返回xml格式的内容。返回xml其实是更好的，因为这个服务才更有通用性。
ser2.WriteObject(context.Response.OutputStream, result);
}
public bool IsReusable
{
get
{
return false;
}
}
}
public class Customer {

public string CustomerID { get; set; }
public Employee[] Employees { get; set; }
public class Employee
{
public int Id { get; set; }
public string Name { get; set; }
}
}
public class ActionResult
{
public int ResultC