private void Form1_Load(object sender, EventArgs e)
{
POManager.readFromFile(ref rList, FileName);
dateTimePicker1.Value = DateTime.Now;
try
{
txtAverage.Text = rList.average().ToString();
}
catch
{
MessageBox.Show("No records exist. Cannot divide by 0.");
}
txtTotal.Text = rList.total().ToString();
}