C#模拟登录

1.自己设计的一个登录页面，两个TextBox（txtName,txtPwd）框和一个Button，Button事件中设置（

    protected void Button1_Click(object sender, EventArgs e)
    {
        if (txtName.Text == "fxl" && txtPwd.Text == "123")
        {
            Response.Redirect("Main.aspx");
        }
    }

）

2.添加一个控制台程序：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Net;
using System.Web;
using System.IO;
using System.Collections;

namespace 模拟登录
{
    class Program
    {
        public static CookieContainer cc = new CookieContainer();

        static void Main(string[] args)
        {
            CookieContainer cc = new CookieContainer();//this is for keep the Session and Cookie

            Hashtable param = new Hashtable();//this is for keep post data.

            //这个地址是我自己IIS上的地址
            string urlLogin = "http://www.my.com/CS.aspx";

            param.Add("txtName", "fxl");

            param.Add("txtPwd", "123");

            string result = PostAndGetHTML(urlLogin,ref cc, param);


            Console.WriteLine(result);



        }

        public static string PostAndGetHTML(string targetURL,ref CookieContainer cc, Hashtable param)

        {
            string formData = "";

            foreach (DictionaryEntry de in param)

            {

                formData += de.Key.ToString() + "=" + de.Value.ToString()+"&";

            }

            if(formData.Length>0)

               formData = formData.Substring(0, formData.Length - 1); //remove last '&'


            ASCIIEncoding encoding = new ASCIIEncoding();

            byte[] data = encoding.GetBytes(formData);


            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(targetURL);

            request.Method = "POST";    //post

          request.ContentType = "application/x-www-form-urlencoded";

            request.ContentLength = data.Length;

            request.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.2; zh-CN; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 (.NET CLR 3.5.30729)";            

            Stream newStream = request.GetRequestStream();

            newStream.Write(data, 0, data.Length);


            newStream.Close();


            request.CookieContainer = cc;

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            cc.Add(response.Cookies);

            Stream stream = response.GetResponseStream();

            string result = new StreamReader(stream, System.Text.Encoding.UTF8).ReadToEnd();

            return result;

        }
    }
}

问题1.但是获取的源代码总是登录页面的，请大家看看怎么才能获得登录后页面的源代码

2.POST数据用不用加上Button1这个参数，我是使用Firefox中的firebug获取页面的POST信息的

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