private void FinishButton_Click(object sender, EventArgs e)
 {
     if (_elevator.PersonsList.Count == 0)
     {
         Result result = new Result();
         _elevator.SendResult(result);
         timer.Enabled = false;
         ResultForm resultForm = new ResultForm(TimeBox.Text, result);
         resultForm.Show();
         Close();
     }
     else
     {
         ErrorLabel.ForeColor = Color.Red;
     }
 }
        private string ShowTime(Time time)
        {
            string box;

            if (time.Ms < 10)
            {
                box = time.Ms.ToString();
            }
            else
            {
                time.Ms = 0;
                time.Sec++;
                box = time.Ms.ToString();
            }

            //sec
            if (time.Sec < 60)
            {
                if (time.Sec < 10)
                {
                    box = "0" + time.Sec.ToString() + ":" + box;
                }
                else
                {
                    box = time.Sec.ToString() + ":" + box;
                }
            }
            else
            {
                time.Sec = 0;
                time.Min++;
                box = "0" + time.Sec.ToString() + ":" + box;
            }

            //min
            if (time.Min < 60)
            {
                if (time.Min < 10)
                {
                    box = "0" + time.Min.ToString() + ":" + box;
                }
                else
                {
                    box = time.Min.ToString() + ":" + box;
                }
            }
            else
            {
                time.Min = 0;
                time.H++;
                box = "0" + time.Min.ToString() + ":" + box;
            }

            //house
            if (time.H < 24)
            {
                if (time.H < 10)
                {
                    box = "0" + time.H.ToString() + ":" + box;
                }
                else
                {
                    box = time.H.ToString() + ":" + box;
                }
            }
            else
            {
                Result result = new Result();
                _elevator.SendResult(result);
                timer.Enabled = false;
                Hide();
                ResultForm resultForm = new ResultForm(TimeBox.Text, result);
                resultForm.Show();
            }
            return(box);
        }