Upload file by FTP ASP.NET

string uri="www.abc.com";
string file = "ful path of  local file";
string usename="usename";
string password="password";
string DName="Server Directory Name";


public void UploadFile(string uri, string file, string usename, string password, string DName)
    {
        string fullpath = "ftp://ftp." + uri + "/" + uri + "/wwwroot/" + DName + "/";

        FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(new Uri(fullpath + fileToUpload.FileName));
        request.Method = WebRequestMethods.Ftp.MakeDirectory;
        request.Method = WebRequestMethods.Ftp.UploadFile;
        request.Credentials = new NetworkCredential(usename, password);
        request.UsePassive = true;
        request.UseBinary = true;
        request.KeepAlive = false;
        request.Timeout = 100000;

        //Load the file
        FileStream stream = File.OpenRead(file);
        byte[] buffer = new byte[stream.Length];

        stream.Read(buffer, 0, buffer.Length);
        stream.Close();

        //Upload file
        Stream reqStream = request.GetRequestStream();
        reqStream.Write(buffer, 0, buffer.Length);
        reqStream.Close();

        lblmsg.Visible = true;
        lblmsg.Text = "File upload successfully";
    }