Thank you for the C# example code. I need to spend some time re-reading this article, and then take a closer look at your C# code to understand how your example works (it is early, maybe I just need a couple more cups of coffee to completely follow the code).

public List real_time_list = new List();
public List time_diff = new List();
public List flag_list = new List();
public List all_time = new List();
public List end_time = new List();
public List start_time = new List();

private void logic_method(object sender, EventArgs e)
{
    int blah = 0;
    flag_list[0] = true;
    int temp = 0;
    int d = 0;
    int counter = 1;
 
    //if there is only one job
    if (all_time.Count == 2)
    {
        real_time_list[0] = Convert.ToDouble(all_time[1].Subtract(all_time[0]));
    }
    if (all_time.Count > 2)
    {
        bool c_end = false;
        all_time.ForEach(delegate(DateTime current)
        {
            //sets the correct time for the second to last time
            if (current == all_time[all_time.Count - 2])
            {
                time_diff[time_diff.Count - 1] = Convert.ToDouble(all_time[all_time.Count - 1].Subtract(current).TotalMinutes);
            }
            if (d < (all_time.Count-1))
            {
                i = 0;
                foreach (DataRow row in table.Rows)
                {
                    if (all_time[d + 1] == Convert.ToDateTime(row["Transaction_Start"].ToString()))
                    {
                        temp = start_time.IndexOf(all_time[d + 1]);
                        time_diff[i] = (Convert.ToDouble(all_time[d + 1].Subtract(current).TotalMinutes) / counter);
                        counter++;
                        c_end = false;
                        //MessageBox.Show(Convert.ToString("Current  " + current + "\ntemp = " + temp + "\ntime diff = " + time_diff[i]));              //debug
                        break;
                    }
                    if (all_time[d + 1] == Convert.ToDateTime(row["Transaction_End"].ToString()))
                    {
                        temp = end_time.IndexOf(all_time[d + 1]);
                        time_diff[i] = (Convert.ToDouble(all_time[d + 1].Subtract(current).TotalMinutes) / counter);
                        counter--;
                        c_end = true;
                        //MessageBox.Show(Convert.ToString("Current  " + current + "\ntemp = " + temp + "\ntime diff = " + time_diff[i]));              //debug
                        break;
                   }
                   i++;       
                }
                assign_time_method(time_diff[i]);
                flag_list[temp] = c_end == true ? false : true;
            }
            d++;
        });
    }
}

private void assign_time_method(double timeD)
{
    ii = 0;
    foreach (bool cur in flag_list)
    {
        if(cur == true)
        {
            real_time_list[ii] = real_time_list[ii] + timeD;
            //MessageBox.Show(Convert.ToString("ii=" + ii + "\ntimediff=" + timeD + "\nrealtime=" + real_time_list[ii] + "\nflag list: "+flag_list[1]));                //debug
        }
        ii++;
    }
}

This is assuming a table populated with the same data that the article above works with.