Trying to enter the site by clicking a button (Httpwebrequest - cookies)

I just started playing with C # a few weeks ago. I have a task that I am trying to accomplish and I don't know if this is right for me now.

I am trying to login to a website (in my case a WordPress site - for the best lake option) and go to the admin panel using C #

So far I have created a new project, a Windows Form Application.

Following code - send a request to the website with password / username and other parameters as POST

private void button2_Click(object sender, EventArgs e)
{
    CookieContainer cookieJar = new CookieContainer();
    CookieContainer cookieJar2 = new CookieContainer(); // will use this later
    string testaa = ""; // will use this later
    string paramaters = "log=xxxx&pwd=xxxx&testcookie=1&redirect_to=http://www.example.com/wp-admin/&wp-submit=Log In";
    string strResponse;
    HttpWebRequest requestLogin = (HttpWebRequest)WebRequest.Create("http://www.lyndatobin-howes.com/wp-login.php");
    requestLogin.Method = "POST";
    requestLogin.AllowAutoRedirect = false;
    requestLogin.ContentType = "application/x-www-form-urlencoded";
    requestLogin.CookieContainer = cookieJar;
    requestLogin.ContentLength = paramaters.Length;
    StreamWriter stOut = new StreamWriter(requestLogin.GetRequestStream(), Encoding.ASCII);
    stOut.Write(paramaters);
    stOut.Close();
}

      

        
        
        
      

    

Then I get this code to grab the response cookie.

HttpWebResponse response = (HttpWebResponse)requestLogin.GetResponse();
foreach (Cookie c in response.Cookies)
{
    cookieJar2.Add(new Cookie(c.Name, c.Value, c.Path, c.Domain));
}

      

        
        
        
      

    

then I have this to read the answer + close some threads.

StreamReader stIn = new StreamReader(requestLogin.GetResponse().GetResponseStream());
strResponse = stIn.ReadToEnd();
string responseFromServer = stIn.ReadToEnd();
webBrowser1.DocumentText = responseFromServer;
stIn.Close();
response.Close();

      

        
        
        
      

    

And then I am trying to use the above cookie for the page I am trying to access like this:

HttpWebRequest requestLogin2 = (HttpWebRequest)WebRequest.Create("http://www.example.com/wp-admin/");
requestLogin2.Method = "POST";
requestLogin2.AllowAutoRedirect = false;
requestLogin2.ContentType = "application/x-www-form-urlencoded";
requestLogin2.CookieContainer = cookieJar2;
requestLogin2.ContentLength = paramaters.Length;
StreamWriter stOut2 = new StreamWriter(requestLogin2.GetRequestStream(), System.Text.Encoding.ASCII);
stOut2.Write(paramaters);
stOut2.Close();

StreamReader stIn2 = new StreamReader(requestLogin2.GetResponse().GetResponseStream());
strResponse = stIn2.ReadToEnd();
string responseFromServer2 = stIn2.ReadToEnd();
webBrowser1.DocumentText = responseFromServer2;
richTextBox2.Text += "\n\n\n" + responseFromServer2;
stIn.Close(); 

      

        
        
        
      

    

Well it doesn't work for some reason, I've been trying this for a week now.

I tried to display the header - after the first request, see what headers I will return. and then looked at the cookies I built (cookieJar2) and it seems they are not the same.

Any help on this issue would be awesome and much appreciated anyway. I have tried to give as much detail as possible.