一个用webservice behavior实现的三级联动下拉列表框

一个用webservice behavior实现的三级联动下拉列表框

个三级联动的下拉列表框，后台用webservice,前台用webservice behavior与后台通讯。请高手们多提改进意见。

server端：（service1.asmx.cs)

using System;

using System.Text;

using System.Configuration;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Data.SqlClient;

using System.Diagnostics;

using System.Web;

using System.Web.Services;

namespace WebService1

{

/// <summary>

/// Summary description for Service1.

/// </summary>

public class Service1 : System.Web.Services.WebService

{

SqlConnection con;

public Service1()

{

//CODEGEN: This call is required by the ASP.NET Web Services Designer

InitializeComponent();

}

#region Component Designer generated code