private void OnRepeatOnRelativeDayInMonthChanged(eRelativeDayInMonth oldValue, eRelativeDayInMonth newValue)
{
OnPropertyChanged(new PropertyChangedEventArgs("RepeatOnRelativeDayInMonth"));
}
/// <summary>
/// AddRRuleByDay
/// </summary>
/// <param name="sb"></param>
/// <param name="rday"></param>
/// <param name="dow"></param>
private void AddRRuleByDay(StringBuilder sb, eRelativeDayInMonth rday, DayOfWeek dow)
{
sb.Append(";BYDAY=");
switch (rday)
{
case eRelativeDayInMonth.First:
sb.Append("1");
break;
case eRelativeDayInMonth.Second:
sb.Append("2");
break;
case eRelativeDayInMonth.Third:
sb.Append("3");
break;
case eRelativeDayInMonth.Fourth:
sb.Append("4");
break;
case eRelativeDayInMonth.Last:
sb.Append("-1");
break;
}
switch (dow)
{
case DayOfWeek.Sunday:
sb.Append("SU");
break;
case DayOfWeek.Monday:
sb.Append("MO");
break;
case DayOfWeek.Tuesday:
sb.Append("TU");
break;
case DayOfWeek.Wednesday:
sb.Append("WE");
break;
case DayOfWeek.Thursday:
sb.Append("TH");
break;
case DayOfWeek.Friday:
sb.Append("FR");
break;
default:
sb.Append("SA");
break;
}
}
private static DateTime GetNextMonthlyRecurrence(DateTime startDate, eRelativeDayInMonth repeatOnRelativeDayInMonth, DayOfWeek relativeDayOfWeek, int repeatOnDayOfMonth, eMonthRecurrence repeatOnMonths)
{
Calendar cal = GetCalendar();
if (repeatOnRelativeDayInMonth == eRelativeDayInMonth.None)
{
DateTime dt = startDate.AddDays(cal.GetDaysInMonth(startDate.Year, startDate.Month) - startDate.Day + 1);
if (repeatOnMonths != eMonthRecurrence.All) AdjustForRepeatOnMonths(ref dt, repeatOnMonths); // Adjust for repeat on Months
return dt.AddDays(Math.Min(cal.GetDaysInMonth(dt.Year, dt.Month), repeatOnDayOfMonth) - 1);
}
else
{
if (repeatOnRelativeDayInMonth == eRelativeDayInMonth.First)
{
DateTime dt = startDate.AddDays(cal.GetDaysInMonth(startDate.Year, startDate.Month) - startDate.Day + 1);
if (repeatOnMonths != eMonthRecurrence.All) AdjustForRepeatOnMonths(ref dt, repeatOnMonths); // Adjust for repeat on Months
while (dt.DayOfWeek != relativeDayOfWeek)
dt = dt.AddDays(1);
return dt;
}
else if (repeatOnRelativeDayInMonth == eRelativeDayInMonth.Last)
{
DateTime dt = startDate.AddDays(cal.GetDaysInMonth(startDate.Year, startDate.Month) - startDate.Day + 1);
if (repeatOnMonths != eMonthRecurrence.All) AdjustForRepeatOnMonths(ref dt, repeatOnMonths); // Adjust for repeat on Months
dt = dt.AddDays(cal.GetDaysInMonth(dt.Year, dt.Month) - 1);
while (dt.DayOfWeek != relativeDayOfWeek)
dt = dt.AddDays(-1);
return dt;
}
else
{
// Second, third and forth
int relCount = 2;
if (repeatOnRelativeDayInMonth == eRelativeDayInMonth.Third)
relCount = 3;
else if (repeatOnRelativeDayInMonth == eRelativeDayInMonth.Fourth)
relCount = 4;
DateTime dt = startDate.AddDays(cal.GetDaysInMonth(startDate.Year, startDate.Month) - startDate.Day);
if (repeatOnMonths != eMonthRecurrence.All) AdjustForRepeatOnMonths(ref dt, repeatOnMonths); // Adjust for repeat on Months
while (relCount > 0)
{
dt = dt.AddDays(1);
if (dt.DayOfWeek == relativeDayOfWeek)
relCount--;
}
return dt;
}
}
throw new InvalidOperationException("Could not find the next relative date for monthly recurrence starting on " + startDate.ToString() + " RelativeDayInMonth=" + repeatOnRelativeDayInMonth.ToString() + " RelativeDayOfWeek=" + relativeDayOfWeek.ToString());
}
