问使用c#的cpmplete html页面阅读器

EN

private void button1_Click(object sender, EventArgs e)
    {
        string urlAddress = "http://iris-rmds.tomtomgroup.com

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlAddress);
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();

        if (response.StatusCode == HttpStatusCode.OK)
        {
            Stream receiveStream = response.GetResponseStream();
            StreamReader readStream = null;

            if (response.CharacterSet == null)
            {
                readStream = new StreamReader(receiveStream);
            }
            else
            {
                readStream = new StreamReader(receiveStream, Encoding.GetEncoding(response.CharacterSet));
            }

            string data = readStream.ReadToEnd();
            textBox1.Text  = data;
            MessageBox.Show(data.ToString());
            //var msg = "Hello world!";
            //MessageBox.Show(msg);
            Clipboard.SetText(data);
            response.Close();
            readStream.Close();

        }
    }