Просмотр поста #443792: Вопросы по C#

private void button3_Click(object sender, EventArgs e)
        {
            if (backgroundWorker1.IsBusy)
            {
                backgroundWorker1.CancelAsync();
                potok = true;
            }
        }
 
        private void button4_Click(object sender, EventArgs e)
        {
            if (potok)
            {
                backgroundWorker1.RunWorkerAsync();
                potok = false;
            }
        }