public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.Append(dateTime.ToString("MM/dd/yyyy"));
sb.Append(",");
sb.Append(dateTime.ToString("HH:mm:ss"));
sb.Append(",");
sb.Append(procName);
sb.Append(",");
sb.Append(title);
sb.Append(",");
sb.Append(timeSpan.TotalMinutes);
return sb.ToString();
}