问程序中的负毫秒数

EN

      //Global variables
bool pause;

        TextView ClickToStart;
        TextView ClickAsSoonAsPossible;
        TextView Tries;
        TextView TriesCount;
        TextView AverageMs;
        TextView AverageMsCount;
        Button ScreenClickButton;
        System.Timers.Timer timer1;
        Color currentColor = Color.White;
        Random rnd = new Random();
        DateTime startTime1;
        DateTime endTime1;
        int secondsToFormat;

        int ClicksCount = 0;



  private void Timer1_Elapsed(object sender, ElapsedEventArgs e)
                {
                    RunOnUiThread(() =>
                    {
                        Toast.MakeText(this, "Timer", ToastLength.Short).Show();
                        currentColor = Color.Green;
                        ScreenClickButton.SetBackgroundColor(currentColor);
                    });
                    timer1.Stop();
                    startTime1 = DateTime.Now;
                }


            private void ClickCount(object sender, EventArgs e)
            {
                if (currentColor == Color.White)
                {

                    currentColor = Color.Red;
                    ScreenClickButton.SetBackgroundColor(currentColor);
                    int seconds = rnd.Next(1, 5);
                    Toast.MakeText(this, "Seconds:" + seconds, ToastLength.Short).Show();
                    timer1.Interval = seconds * 1000;
                    timer1.Start();

                }
                else if (currentColor == Color.Green)
                {
                    endTime1 = DateTime.Now;
                    ClicksCount++;

                    secondsToFormat =endTime1.Millisecond - startTime1.Millisecond;

     AverageMsCount.Text = secondsToFormat.ToString();

                   // if(secondsToFormat>=1000)
                 //   {
                 //       AverageMs.Text = ((endTime1 - startTime1).Milliseconds).ToString();
                 //   }

                    currentColor = Color.White;
                    ScreenClickButton.SetBackgroundColor(currentColor);
                }
                else if (currentColor == Color.Red)
                {

                    currentColor = Color.White;
                    ScreenClickButton.SetBackgroundColor(currentColor);
                }


                //Toast.MakeText(this, "You clicked me " + ClicksCount + "times", ToastLength.Short).Show();
                if (ClicksCount == 1)

                    AverageMsCount.Text = secondsToFormat.ToString();
                TriesCount.Text = "1";

                if (ClicksCount == 2)
                {
                    secondsToFormat = secondsToFormat / 2;
                    AverageMsCount.Text = secondsToFormat.ToString();

                    TriesCount.Text = "2";

                }
                if (ClicksCount == 3)
                {
                    secondsToFormat = secondsToFormat / 3;
                    AverageMsCount.Text = secondsToFormat.ToString();
                    TriesCount.Text = "3";
                }
                if (ClicksCount == 4)
                {
                    secondsToFormat = secondsToFormat / 4;
                    AverageMsCount.Text = secondsToFormat.ToString();
                    TriesCount.Text = "4";

                }

                if (ClicksCount == 5)
                {
                    secondsToFormat = secondsToFormat / 5;
                    AverageMsCount.Text = secondsToFormat.ToString();
                    TriesCount.Text = "5";
                }


                if (Click`enter code here`sCount == 6)
                {
                    ClicksCount = 1;

                }



            }