private void button_Copy_Click(object sender, RoutedEventArgs e)
        {
            WorkerSendChooseForm workerSendChooseForm = new WorkerSendChooseForm();

            workerSendChooseForm.Show();
            this.Close();
        }
        private void acceptRegistration(object sender, RoutedEventArgs e)
        {
            WorkerSendChooseForm workerSendChooseForm = new WorkerSendChooseForm();

            workerSendChooseForm.Show();
            this.Close();
        }