public MainWindow()
        {
            DatabaseClass     databaseClass     = new DatabaseClass(monitor12);
            EventCreatorClass eventCreatorClass = new EventCreatorClass(monitor12, monitor23, databaseClass, events);
            EventLoaderClass  eventLoaderClass  = new EventLoaderClass(monitor23, events);
            List <Thread>     threads           = new List <Thread>();

            InitializeComponent();
            SeleniumClass selenium = new SeleniumClass(ComboGroup, ComboSemester, INFO, USER, PASS, HIDE);

            StartButton.Click    += (sender, EventArgs) => StartButton_Click(sender, EventArgs, databaseClass, eventCreatorClass, eventLoaderClass, threads);
            CancelButton.Click   += (sender, EventArgs) => Cancel_Click(sender, EventArgs, threads);
            LoginButton.Click    += (sender, EventArgs) => LoginClick(sender, EventArgs, selenium);
            SelectButton.Click   += (sender, EventArgs) => SelectClick(sender, EventArgs, selenium);
            DownloadButton.Click += (sender, EventArgs) => DownloadClick(sender, EventArgs, selenium);
        }
        private void StartButton_Click(object sender, RoutedEventArgs e, DatabaseClass databaseClass, EventCreatorClass eventCreatorClass, EventLoaderClass eventLoaderClass, List <Thread> threads)
        {
            Thread databaseThread = new Thread(() => databaseClass.UploadCoursesToDatabase(DBLog, DBCounter, S1Red));

            threads.Add(databaseThread);
            Thread creatorThread = new Thread(() => eventCreatorClass.CreateEvents(EventCreateLog, S1Red, EventCreatedCounter, CreatorLight, LoaderLight));

            threads.Add(creatorThread);
            Thread loaderThread = new Thread(() => eventLoaderClass.EventUpload(EventLoaderLog, EventCreateLog, EventCreatedCounter, LoaderCounter, LoaderLight, CreatorLight, S1Red, StartButton, CancelButton, DeleteButton));

            threads.Add(loaderThread);

            foreach (var th in threads)
            {
                th.Start();
            }
            StartButton.Visibility  = Visibility.Hidden;
            CancelButton.Visibility = Visibility.Visible;
            DeleteButton.IsEnabled  = false;
        }