Download The File After Logging IN

Question

Welcome

I have the following problem, I want to automate the process of downloading the xml file of the site by the program but unfortunately I do not know what the problem is that it gets me to the page rather than the file ....

How do I do now:

I go to the website: http://www.ligatestowanba.ligspace.pl/index.php?pa=Admin&mod=Users&ac=Login

Logs:

Username: testtest

password: awdsa

Then, on a static link to the xml file that wants to download: http://www.ligatestowanba.ligspace.pl/index.php?pa=Admin&mod=AdminCms&ac=ExportData&download=teams

contents of the file should be this:

<? xml version = "1.0"?>

<teams/>

Unfortunately, the code that I wrote is not downloading this file, only that page service ....

Can anyone help me ..... HELP (F1. .....)

CODE

 CookieContainer cookies = new CookieContainer();
                //POST
                HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://www.ligatestowanba.ligspace.pl/index.php?pa=Admin&mod=Users&ac=Login");
                request.Method = "POST";
                request.CookieContainer = cookies;
                string loginData = String.Format("username=testtest&password=awdsa");
                request.ContentType = "application/x-www-form-urlencoded";
                byte[] loginDataBytes = Encoding.ASCII.GetBytes(loginData);
                Stream postData = request.GetRequestStream();
                postData.Write(loginDataBytes, 0, loginDataBytes.Length);
                postData.Close();
                HttpWebResponse webResp = (HttpWebResponse)request.GetResponse();
                StreamReader loResponseStream = new StreamReader(webResp.GetResponseStream());
                string HelpResponse = loResponseStream.ReadToEnd();
                //// Then grab the content of the desired page ////////////////////////
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://www.ligatestowanba.ligspace.pl/index.php?pa=Admin&mod=AdminCms&ac=ExportData&download=teams");
                req.CookieContainer = cookies;
                req.Method = "GET";
                HttpWebResponse res = (HttpWebResponse)req.GetResponse();
                Stream resStream = res.GetResponseStream();
                StreamReader reader = new StreamReader(resStream);
                string input = reader.ReadToEnd();