Web Requester

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.IO;

namespace WebRequest
{
    public partial class Form1 : Form
    {

        CookieContainer cookieContainer = new CookieContainer();

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string email = "testemail";
            string password = "testkode";
            string url = textBox1.Text;

            string PostData = String.Format("email={0}&password={1}", email, password);

            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
            req.CookieContainer = cookieContainer;
            req.Method = "POST";
            req.ContentLength = PostData.Length;
            req.ContentType = "application/x-www-form-urlencoded";
            req.AllowAutoRedirect = true;
            req.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";

            ASCIIEncoding encoding = new ASCIIEncoding();
            byte[] loginDataBytes = encoding.GetBytes(PostData);
            req.ContentLength = loginDataBytes.Length;
            Stream stream = req.GetRequestStream();
            stream.Write(loginDataBytes, 0, loginDataBytes.Length);

            HttpWebResponse webResp = (HttpWebResponse)req.GetResponse();

            Stream datastream = webResp.GetResponseStream();
            StreamReader reader = new StreamReader(datastream);
            richTextBox1.AppendText(reader.ReadToEnd() + "\n");
        }
    }
}