for post id and password for get after login page content but it can not work correct

[humhi]

please help

how to get the after login page of particular url.

private void button2_Click(object sender, EventArgs e)
        {
            string strId = "abc";
            string strName = "xyz";

            ASCIIEncoding encoding = new ASCIIEncoding();
            string postData = "login=" + strId;
            postData += ("&password=" + strName + "&commit=Log+in");
            byte[] data = encoding.GetBytes(postData);

            // Prepare web request...
            HttpWebRequest myRequest =
              (HttpWebRequest)WebRequest.Create("https://[here any url]/");
            myRequest.Method = "POST";
            myRequest.ContentType = "application/x-www-form-urlencoded";
            myRequest.ContentLength = data.Length;
            Stream newStream = myRequest.GetRequestStream();
            // Send the data.
            newStream.Write(data, 0, data.Length);
            newStream.Close();
            WebResponse response = myRequest.GetResponse();
            MessageBox.Show(((HttpWebResponse)response).StatusDescription);
            newStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(newStream);
            string responseFromServer = reader.ReadToEnd();
            MessageBox.Show(responseFromServer);
            reader.Close();
            newStream.Close();
            response.Close();
        }