public virtual AppointmentRecurrence ReadRecurrenceData(string recurrenceXml)
{
if (string.IsNullOrEmpty(recurrenceXml))
{
return(null);
}
XDocument xDoc = XDocument.Parse(recurrenceXml);
AppointmentRecurrence ar = new AppointmentRecurrence();
XElement rule = xDoc.Element("recurrence").Element("rule");
XElement firstDayOfWeek = rule.Element("firstDayOfWeek");
XElement repeatForever = rule.Element("repeatForever");
XElement repeat = rule.Element("repeat");
if (firstDayOfWeek != null)
{
var value = firstDayOfWeek.Value;
ar.WeekStart = (DaysAbbr)Enum.Parse(typeof(DaysAbbr), value.ToUpper());
}
else
{
ar.WeekStart = DaysAbbr.MO;
}
if (repeatForever != null)
{
var value = repeatForever.Value;
ar.RepeatForever = Convert.ToBoolean(value);
}
else
{
ar.RepeatForever = false;
}
var windowEnd = rule.Element("windowEnd");
if (windowEnd != null)
{
ar.UntilDate = DateTime.ParseExact(windowEnd.Value, "yyyy-MM-ddTHH:mm:ssZ", CultureInfo.CurrentCulture);
}
var repeatInstances = rule.Element("repeatInstances");
if (repeatInstances != null)
{
ar.RepeatInstances = int.Parse(repeatInstances.Value);
}
var daily = repeat.Element("daily");
var weekly = repeat.Element("weekly");
var monthly = repeat.Element("monthly");
var yearly = repeat.Element("yearly");
if (daily != null)
{
ar.Type = RecuringType.DAILY;
var dayFrequency = daily.Attribute("dayFrequency");
if (dayFrequency != null)
{
ar.Frequency = int.Parse(dayFrequency.Value);
}
}
else if (weekly != null)
{
ar.Type = RecuringType.WEEKLY;
var weekFrequency = weekly.Attribute("weekFrequency");
if (weekFrequency != null)
{
ar.Frequency = int.Parse(weekFrequency.Value);
}
var names = Appointment.AllDays.Select(day => day.ToString());
foreach (XAttribute attr in weekly.Attributes())
{
if (names.Contains(attr.Name.LocalName.ToUpper()) && Convert.ToBoolean(attr.Value) == true)
{
ar.Days.Add((DaysAbbr)Enum.Parse(typeof(DaysAbbr), attr.Name.LocalName.ToUpper()));
}
}
}
else if (monthly != null)
{
ar.Type = RecuringType.MONTHLY;
var monthFrequency = monthly.Attribute("monthFrequency");
if (monthFrequency != null)
{
ar.Frequency = int.Parse(monthFrequency.Value);
}
var day = monthly.Attribute("day");
if (day != null)
{
ar.MonthDay = int.Parse(day.Value);
}
}
else if (yearly != null)
{
ar.Type = RecuringType.YEARLY;
var yearFrequency = yearly.Attribute("yearFrequency");
if (yearFrequency != null)
{
ar.Frequency = int.Parse(yearFrequency.Value);
}
var day = yearly.Attribute("day");
if (day != null)
{
ar.MonthDay = int.Parse(day.Value);
}
var month = yearly.Attribute("month");
{
ar.Month = int.Parse(month.Value);
}
}
return(ar);
}
private string GetRRULE(AppointmentRecurrence recurrence)
{
StringBuilder sb = new StringBuilder();
sb.Append("RRULE:");
sb.Append("FREQ=");
sb.Append(recurrence.Type.ToString());
if (recurrence.UntilDate != null)
{
sb.Append(";UNTIL=");
sb.Append(recurrence.UntilDate.Value.ToString(ICS_DATE_TIME_FORMAT));
}
if (recurrence.RepeatInstances > 0)
{
sb.Append(";COUNT=");
sb.Append(recurrence.RepeatInstances.ToString());
}
if (recurrence.Frequency > 0)
{
sb.Append(";INTERVAL=");
sb.Append(recurrence.Frequency);
}
if (recurrence.MonthDay > 0)
{
sb.Append(";BYMONTHDAY=");
sb.Append(recurrence.MonthDay.ToString());
}
if (recurrence.Month > 0)
{
sb.Append(";BYMONTH=");
sb.Append(recurrence.Month.ToString());
}
switch (recurrence.Type)
{
case RecuringType.DAILY:
break;
case RecuringType.WEEKLY:
if (recurrence.Days.Count > 0)
{
sb.Append(";BYDAY=");
sb.Append(string.Join(",", recurrence.Days.Select(d => d.ToString()).ToArray()));
}
break;
case RecuringType.MONTHLY:
break;
case RecuringType.YEARLY:
break;
default:
break;
}
sb.Append(";WKST=");
sb.Append(recurrence.WeekStart.ToString());
return(sb.ToString());
}
