//added to provide dynamic initialization for DateList in span rules.
private void InitSpanDateList()
{
string[] parts = RecurrenceRule.Split(new char[] { RecurrenceSupport.RuleDelimiter });
if (parts.GetLength(0) == 3)
{
dateList = new RecurrenceList();
dateList.BaseDate = DateTime.Parse(parts[1], System.Globalization.CultureInfo.InstalledUICulture.DateTimeFormat);
dateList.TerminalDate = DateTime.Parse(parts[2], System.Globalization.CultureInfo.InstalledUICulture.DateTimeFormat);
}
}