static void Main()
{
Recurrence r = new Recurrence();
int idx;
Console.WriteLine("The first part will calculate instances using only the Recurrence class. All " +
"instances are expressed in local time.\nPress ENTER to continue...");
Console.ReadLine();
// NOTE: The examples in the spec assume the US-Eastern time zone. Here, we're specifying the
// date/times directly and everything is in local time. The recurrence engine always generates the
// date/times in local time when used by itself. For time zone support, use the calendar objects as
// demonstrated later on below.
Console.WriteLine("Daily for 10 occurrences:");
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.MaximumOccurrences = 10;
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Daily until December 24, 1997:");
// We'll re-use the same object. Just reset it first.
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
// Note that in the spec examples, it looks as if the end times are wrong. It shows the times in
// Universal Time as it should be but if you convert the times from Universal Time to US-Eastern time
// (-05:00), it cuts a few of the patterns off too early. I've adjusted those where needed.
r.RecurUntil = new DateTime(1997, 12, 24, 0, 0, 0);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other day - forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.Interval = 2;
Console.WriteLine(r.ToStringWithStartDateTime());
// We'll limit the output of the "forever" rules by using the InstancesBetween() method to limit the
// output to a range of dates and enumerate the returned DateTimeCollection.
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1997, 12, 5)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 10 days, 5 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.Interval = 10;
r.MaximumOccurrences = 5;
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every day in January, for 3 years:");
r.Reset();
r.StartDateTime = new DateTime(1998, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.RecurUntil = new DateTime(2000, 1, 31, 9, 0, 0);
r.ByMonth.Add(1);
// When adding days without an instance value, you can use the helper method on the collection that
// takes an array of DayOfWeek values rather than constructing an array of DayInstance objects.
r.ByDay.AddRange(new[] { DayOfWeek.Sunday, DayOfWeek.Monday, DayOfWeek.Tuesday, DayOfWeek.Wednesday,
DayOfWeek.Thursday, DayOfWeek.Friday, DayOfWeek.Saturday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but using a DAILY frequency
Console.WriteLine("Everyday in January, for 3 years:");
r.Reset();
r.StartDateTime = new DateTime(1998, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.RecurUntil = new DateTime(2000, 1, 31, 9, 0, 0);
r.ByMonth.Add(1);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.MaximumOccurrences = 10;
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly until December 24, 1997:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.RecurUntil = new DateTime(1997, 12, 24, 0, 0, 0);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other week - forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1999, 2, 10)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly on Tuesday and Thursday for 5 weeks:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.RecurUntil = new DateTime(1997, 10, 07, 0, 0, 0);
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but using a count
Console.WriteLine("Weekly on Tuesday and Thursday for 5 weeks:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.MaximumOccurrences = 10;
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// NOTE: The inclusion of DTSTART in a recurrence set is a feature of the calendar objects, NOT the
// recurrence engine. To include DTSTART, use a calendar object such as VEvent to generate the set
// as demonstrated later on below.
Console.WriteLine("Every other week on Monday, Wednesday and Friday until December 24, 1997, but " +
"starting on Tuesday, September 2, 1997:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
r.RecurUntil = new DateTime(1997, 12, 24, 0, 0, 0);
r.ByDay.AddRange(new[] { DayOfWeek.Monday, DayOfWeek.Wednesday, DayOfWeek.Friday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other week on Tuesday and Thursday, for 8 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
r.MaximumOccurrences = 8;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 1st Friday for ten occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
// There are also helper methods to add single instances
r.ByDay.Add(1, DayOfWeek.Friday);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 1st Friday until December 24, 1997:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.RecurUntil = new DateTime(1997, 12, 24, 0, 0, 0);
r.ByDay.Add(1, DayOfWeek.Friday);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other month on the 1st and last Sunday of the month for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 7, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 2;
r.MaximumOccurrences = 10;
r.ByDay.AddRange(new[] { new DayInstance(1, DayOfWeek.Sunday), new DayInstance(-1, DayOfWeek.Sunday) });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the second to last Monday of the month for 6 months:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 22, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 6;
r.ByDay.Add(-2, DayOfWeek.Monday);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the third to the last day of the month, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 28, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByMonthDay.Add(-3);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1998, 2, 28)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 2nd and 15th of the month for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 2, 15 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the first and last day of the month for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 30, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 1, -1 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 18 months on the 10th through 15th of the month for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 18;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 10, 11, 12, 13, 14, 15 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Tuesday, every other month:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 2;
r.ByDay.Add(DayOfWeek.Tuesday);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1998, 4, 1)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Yearly in June and July for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 6, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.MaximumOccurrences = 10;
r.ByMonth.AddRange(new[] { 6, 7 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other year in January, February, and March for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 3, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 2;
r.MaximumOccurrences = 10;
r.ByMonth.AddRange(new[] { 1, 2, 3 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 3rd year on the 1st, 100th and 200th day for 10 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 3;
r.MaximumOccurrences = 10;
r.ByYearDay.AddRange(new[] { 1, 100, 200 });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 20th Monday of the year, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 5, 19, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByDay.Add(20, DayOfWeek.Monday);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(2004, 5, 19)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monday of week number 20 (where the default start of the week is Monday), forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 5, 12, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByWeekNo.Add(20);
r.ByDay.Add(DayOfWeek.Monday);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(2004, 5, 19)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Thursday in March, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 3, 13, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByMonth.Add(3);
r.ByDay.Add(DayOfWeek.Thursday);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1999, 4, 1)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Thursday, but only during June, July, and August, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 6, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByMonth.AddRange(new[] { 6, 7, 8 });
r.ByDay.Add(DayOfWeek.Thursday);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1999, 9, 1)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Friday the 13th, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByDay.Add(DayOfWeek.Friday);
r.ByMonthDay.Add(13);
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(2003, 12, 31)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("The first Saturday that follows the first Sunday of the month, forever:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 13, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByDay.Add(DayOfWeek.Saturday);
r.ByMonthDay.AddRange(new[] { 7, 8, 9, 10, 11, 12, 13 });
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1998, 7, 1)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every four years, the first Tuesday after a Monday in November, forever " +
"(U.S. Presidential Election day):");
r.Reset();
r.StartDateTime = new DateTime(1996, 11, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 4;
r.ByMonth.Add(11);
r.ByDay.Add(DayOfWeek.Tuesday);
r.ByMonthDay.AddRange(new[] { 2, 3, 4, 5, 6, 7, 8 });
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(2004, 11, 3)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("The 3rd instance into the month of one of Tuesday, Wednesday or Thursday, for " +
"the next 3 months:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 4, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 3;
r.BySetPos.Add(3);
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Wednesday, DayOfWeek.Thursday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("The 2nd to last weekday of the month:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 29, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.BySetPos.Add(-2);
r.ByDay.AddRange(new[] { DayOfWeek.Monday, DayOfWeek.Tuesday, DayOfWeek.Wednesday,
DayOfWeek.Thursday, DayOfWeek.Friday });
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1998, 9, 29)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 3 hours from 9:00 AM to 5:00 PM on a specific day:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Hourly;
r.Interval = 3;
r.RecurUntil = new DateTime(1997, 9, 2, 17, 0, 0);
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 15 minutes for 6 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 15;
r.MaximumOccurrences = 6;
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every hour and a half for 4 occurrences:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 90;
r.MaximumOccurrences = 4;
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 20 minutes from 9:00 AM to 4:40 PM every day:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.ByHour.AddRange(new[] { 9, 10, 11, 12, 13, 14, 15, 16 });
r.ByMinute.AddRange( new[] { 0, 20, 40 });
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1997, 9, 4)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but with a MINUTELY frequency
Console.WriteLine("Every 20 minutes from 9:00 AM to 4:40 PM every day:");
r.Reset();
r.StartDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 20;
r.ByHour.AddRange(new[] { 9, 10, 11, 12, 13, 14, 15, 16 });
Console.WriteLine(r.ToStringWithStartDateTime());
// Not forever for the test
foreach(DateTime dt in r.InstancesBetween(r.StartDateTime, new DateTime(1997, 9, 4)))
Console.WriteLine(dt);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("An example where the days generated makes a difference because of WKST:");
r.Reset();
r.StartDateTime = new DateTime(1997, 8, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.MaximumOccurrences = 4;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Sunday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Changing only WKST from the default MO to SU yields different results:");
r.Reset();
r.StartDateTime = new DateTime(1997, 8, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.MaximumOccurrences = 4;
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Sunday });
Console.WriteLine(r.ToStringWithStartDateTime());
foreach(DateTime dt in r)
Console.WriteLine(dt);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Now do the same one but use the calendar classes to demonstrate the time zone abilities
Console.WriteLine("\n\nThe next part will calculate instances using the calendar classes with " +
"time zone support.\nPress ENTER to continue...");
Console.ReadLine();
// First, set up the time zone information. If you don't care about the time zone, you can skip this
// stuff and everything will be calculated in local time.
VTimeZone vtz = new VTimeZone();
vtz.TimeZoneId.Value = "US-Eastern";
// Set the standard time observance rule
ObservanceRule obr = vtz.ObservanceRules.Add(ObservanceRuleType.Standard);
obr.StartDateTime.DateTimeValue = new DateTime(1970, 10, 25, 2, 0, 0);
obr.OffsetFrom.TimeSpanValue = TimeSpan.FromHours(-4);
obr.OffsetTo.TimeSpanValue = TimeSpan.FromHours(-5);
RRuleProperty rrule = new RRuleProperty();
rrule.Recurrence.RecurYearly(DayOccurrence.Last, DaysOfWeek.Sunday, 10, 1);
obr.RecurrenceRules.Add(rrule);
obr.TimeZoneNames.Add("Eastern Standard Time");
// Set the daylight saving time observance rule
obr = vtz.ObservanceRules.Add(ObservanceRuleType.Daylight);
obr.StartDateTime.DateTimeValue = new DateTime(1970, 4, 5, 2, 0, 0);
obr.OffsetFrom.TimeSpanValue = TimeSpan.FromHours(-5);
obr.OffsetTo.TimeSpanValue = TimeSpan.FromHours(-4);
rrule = new RRuleProperty();
rrule.Recurrence.RecurYearly(DayOccurrence.First, DaysOfWeek.Sunday, 4, 1);
obr.RecurrenceRules.Add(rrule);
obr.TimeZoneNames.Add("Eastern Daylight Time");
VCalendar.TimeZones.Add(vtz);
// Now we'll set up an event to use for the calculations. We don't need a VCalendar object as we are
// just generating recurring instances.
VEvent vevent = new VEvent();
// Add an RRULE property
rrule = new RRuleProperty();
vevent.RecurrenceRules.Add(rrule);
// Get a reference to the recurrence rule property's recurrence and the event's start date property
// for convenience.
r = rrule.Recurrence;
StartDateProperty startDateTime = vevent.StartDateTime;
// Set the time zone of the event's start date to the same ID used for the time zone component above
vevent.StartDateTime.TimeZoneId = "US-Eastern";
//-----------------------------------------------------------------
Console.WriteLine("Daily for 10 occurrences:");
// The start date is set on the event. We use the TimeZoneDateTime property to indicate that the
// date/time is in the time zone. Using DateTimeValue instead would convert the value from local
// time to the time zone.
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.MaximumOccurrences = 10;
// Get the instances expressed in the time zone's time and in local time
DateTimeInstanceCollection dtiTZ = vevent.AllInstances(false);
DateTimeInstanceCollection dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
// We'll just display the start time from each instance. End time and duration info is also present
// in the returned instances.
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Daily until December 24, 1997:");
// We'll re-use the same recurrence object. Just reset it first.
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
// Note that the recurrence rules in an event determine the end date of the event, NOT the EndDate
// (DTEND) property of the event. The end date property on the event simply determines the duration
// of each instance. Another thing to remember is that RecurUntil is specified in Universal Time
// which ends up in local time when recurrence instances are generated. If specify times in another
// time zone, be sure to set the RecurUntil time as a time in that time zone.
r.RecurUntil = new DateTime(1997, 12, 24, 5, 0, 0).ToLocalTime();
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other day - forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.Interval = 2;
// We'll limit the output of the "forever" rules by using the InstancesBetween() method to limit the
// output to a range of dates and enumerate the returned DateTimeCollection.
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1997, 12, 5), false);
// For local time, the start and end date must be in local time. To match the range in the prior
// call, we use the DateTimeValue property of the start date property and convert a value in
// Universal Time to local time.
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1997, 12, 5, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 10 days, 5 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.Interval = 10;
r.MaximumOccurrences = 5;
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Everyday in January, for 3 years:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1998, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.RecurUntil = new DateTime(2000, 1, 31, 14, 0, 0).ToLocalTime();
r.ByMonth.Add(1);
// When adding days without an instance value, you can use the helper method on the collection that
// takes an array of DayOfWeek values rather than constructing an array of DayInstance objects.
r.ByDay.AddRange(new[] { DayOfWeek.Sunday, DayOfWeek.Monday, DayOfWeek.Tuesday, DayOfWeek.Wednesday,
DayOfWeek.Thursday, DayOfWeek.Friday, DayOfWeek.Saturday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but using a DAILY frequency
Console.WriteLine("Everyday in January, for 3 years:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1998, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.RecurUntil = new DateTime(2000, 1, 31, 14, 0, 0).ToLocalTime();
r.ByMonth.Add(1);
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.MaximumOccurrences = 10;
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly until December 24, 1997:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.RecurUntil = new DateTime(1997, 12, 24, 5, 0, 0).ToLocalTime();
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other week - forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1999, 2, 10), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1999, 2, 10, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Weekly on Tuesday and Thursday for 5 weeks:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.RecurUntil = new DateTime(1997, 10, 07, 4, 0, 0).ToLocalTime();
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new [] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but using a count
Console.WriteLine("Weekly on Tuesday and Thursday for 5 weeks:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.MaximumOccurrences = 10;
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// The inclusion of DTSTART in a recurrence set is a feature of the calendar objects, NOT the
// recurrence engine. So, for this example, the start date will be included.
Console.WriteLine("Every other week on Monday, Wednesday and Friday until December 24, 1997, but " +
"starting on Tuesday, September 2, 1997:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
r.RecurUntil = new DateTime(1997, 12, 24, 5, 0, 0).ToLocalTime();
r.ByDay.AddRange(new[] { DayOfWeek.Monday, DayOfWeek.Wednesday, DayOfWeek.Friday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other week on Tuesday and Thursday, for 8 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.WeekStart = DayOfWeek.Sunday;
r.MaximumOccurrences = 8;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Thursday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 1st Friday for ten occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
// There are also helper methods to add single instances
r.ByDay.Add(1, DayOfWeek.Friday);
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 1st Friday until December 24, 1997:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.RecurUntil = new DateTime(1997, 12, 24, 5, 0, 0).ToLocalTime();
r.ByDay.Add(1, DayOfWeek.Friday);
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other month on the 1st and last Sunday of the month for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 7, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 2;
r.MaximumOccurrences = 10;
r.ByDay.AddRange(new[] { new DayInstance(1, DayOfWeek.Sunday), new DayInstance(-1, DayOfWeek.Sunday) });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the second to last Monday of the month for 6 months:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 22, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 6;
r.ByDay.Add(-2, DayOfWeek.Monday);
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the third to the last day of the month, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 28, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByMonthDay.Add(-3);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1998, 2, 28), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1998, 2, 28, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the 2nd and 15th of the month for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 2, 15 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monthly on the first and last day of the month for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 30, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 1, -1 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 18 months on the 10th through 15th of the month for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 18;
r.MaximumOccurrences = 10;
r.ByMonthDay.AddRange(new[] { 10, 11, 12, 13, 14, 15 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Tuesday, every other month:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.Interval = 2;
r.ByDay.Add(DayOfWeek.Tuesday);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1998, 4, 1), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1998, 4, 1, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Yearly in June and July for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 6, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.MaximumOccurrences = 10;
r.ByMonth.AddRange(new[] { 6, 7 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every other year in January, February, and March for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 3, 10, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 2;
r.MaximumOccurrences = 10;
r.ByMonth.AddRange(new[] { 1, 2, 3 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 3rd year on the 1st, 100th and 200th day for 10 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 1, 1, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 3;
r.MaximumOccurrences = 10;
r.ByYearDay.AddRange(new[] { 1, 100, 200 });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 20th Monday of the year, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 5, 19, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByDay.Add(20, DayOfWeek.Monday);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(2004, 5, 19), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(2004, 5, 19, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Monday of week number 20 (where the default start of the week is Monday), forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 5, 12, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByWeekNo.Add(20);
r.ByDay.Add(DayOfWeek.Monday);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(2004, 5, 19), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(2004, 5, 19, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Thursday in March, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 3, 13, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByMonth.Add(3);
r.ByDay.Add(DayOfWeek.Thursday);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1999, 4, 1), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1999, 4, 1, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Thursday, but only during June, July, and August, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 6, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.ByMonth.AddRange(new[] { 6, 7, 8 });
r.ByDay.Add(DayOfWeek.Thursday);
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1999, 9, 1), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1999, 9, 1, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every Friday the 13th, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByDay.Add(DayOfWeek.Friday);
r.ByMonthDay.Add(13);
// This one uses an EXDATE property to remove the starting date
ExDateProperty exdate = vevent.ExceptionDates.Add(startDateTime.TimeZoneDateTime);
exdate.TimeZoneId = startDateTime.TimeZoneId;
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(2003, 12, 31), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(2003, 12, 31, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(exdate.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
// Clear the exception date
vevent.ExceptionDates.Clear();
//-----------------------------------------------------------------
Console.WriteLine("The first Saturday that follows the first Sunday of the month, forever:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 13, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.ByDay.Add(DayOfWeek.Saturday);
r.ByMonthDay.AddRange(new[] { 7, 8, 9, 10, 11, 12, 13 });
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1998, 7, 1), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1998, 7, 1, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every four years, the first Tuesday after a Monday in November, forever (U.S. " +
"Presidential Election day):");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1996, 11, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Yearly;
r.Interval = 4;
r.ByMonth.Add(11);
r.ByDay.Add(DayOfWeek.Tuesday);
r.ByMonthDay.AddRange(new[] { 2, 3, 4, 5, 6, 7, 8 });
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(2004, 11, 3), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(2004, 11, 3, 5, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("The 3rd instance into the month of one of Tuesday, Wednesday or Thursday, for " +
"the next 3 months:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 4, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.MaximumOccurrences = 3;
r.BySetPos.Add(3);
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Wednesday, DayOfWeek.Thursday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("The 2nd to last weekday of the month:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 29, 9, 0, 0);
r.Frequency = RecurFrequency.Monthly;
r.BySetPos.Add(-2);
r.ByDay.AddRange(new[] { DayOfWeek.Monday, DayOfWeek.Tuesday, DayOfWeek.Wednesday,
DayOfWeek.Thursday, DayOfWeek.Friday });
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1998, 9, 29), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1998, 9, 29, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 3 hours from 9:00 AM to 5:00 PM on a specific day:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Hourly;
r.Interval = 3;
r.RecurUntil = new DateTime(1997, 9, 2, 21, 0, 0).ToLocalTime();
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 15 minutes for 6 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 15;
r.MaximumOccurrences = 6;
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every hour and a half for 4 occurrences:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 90;
r.MaximumOccurrences = 4;
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Every 20 minutes from 9:00 AM to 4:40 PM every day:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Daily;
r.ByHour.AddRange(new[] { 9, 10, 11, 12, 13, 14, 15, 16 });
r.ByMinute.AddRange( new[] { 0, 20, 40 });
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1997, 9, 4), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1997, 9, 4, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
// Like the last one but with a MINUTELY frequency
Console.WriteLine("Every 20 minutes from 9:00 AM to 4:40 PM every day:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 9, 2, 9, 0, 0);
r.Frequency = RecurFrequency.Minutely;
r.Interval = 20;
r.ByHour.AddRange(new[] { 9, 10, 11, 12, 13, 14, 15, 16 });
// Not forever for the test
dtiTZ = vevent.InstancesBetween(startDateTime.TimeZoneDateTime, new DateTime(1997, 9, 4), false);
dtiLocal = vevent.InstancesBetween(startDateTime.DateTimeValue,
new DateTime(1997, 9, 4, 4, 0, 0).ToLocalTime(), true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("... Forever ...\nPress ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("An example where the days generated makes a difference because of WKST:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 8, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.MaximumOccurrences = 4;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Sunday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
//-----------------------------------------------------------------
Console.WriteLine("Changing only WKST from the default MO to SU yields different results:");
r.Reset();
startDateTime.TimeZoneDateTime = new DateTime(1997, 8, 5, 9, 0, 0);
r.Frequency = RecurFrequency.Weekly;
r.Interval = 2;
r.MaximumOccurrences = 4;
r.WeekStart = DayOfWeek.Sunday;
r.ByDay.AddRange(new[] { DayOfWeek.Tuesday, DayOfWeek.Sunday });
dtiTZ = vevent.AllInstances(false);
dtiLocal = vevent.AllInstances(true);
Console.Write(startDateTime.ToString());
Console.Write(rrule.ToString());
for(idx = 0; idx < dtiTZ.Count; idx++)
Console.WriteLine("TZ: {0:G} {1} Local: {2:G} {3}", dtiTZ[idx].StartDateTime,
dtiTZ[idx].AbbreviatedStartTimeZoneName, dtiLocal[idx].StartDateTime,
dtiLocal[idx].AbbreviatedStartTimeZoneName);
Console.WriteLine("Press ENTER to continue...");
Console.ReadLine();
}
//=====================================================================
/// <summary>
/// This is used to load the VCalendar.TimeZones collection with time zone information from the registry
/// </summary>
public static void LoadTimeZoneInfo()
{
string keyName, display, standardDesc, dstDesc;
TIMEZONE tz;
VCalendar.TimeZones.Clear();
// To keep things simple, we'll load the time zone data from the settings available in the registry.
// We could take it a step further and load it from something like a copy of the Olson time zone
// database but I haven't been that ambitious yet.
if(Environment.OSVersion.Platform == PlatformID.Win32NT)
keyName = @"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones";
else
keyName = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones";
using(var rk = Registry.LocalMachine.OpenSubKey(keyName))
{
foreach(string s in rk.GetSubKeyNames())
{
using(var rsk = rk.OpenSubKey(s))
{
display = (string)rsk.GetValue("Display");
standardDesc = (string)rsk.GetValue("Std");
dstDesc = (string)rsk.GetValue("Dlt");
tz = TIMEZONE.FromRegistry(rsk.GetValue("TZI"));
}
// Create the time zone object
VTimeZone vtz = new VTimeZone();
vtz.TimeZoneId.Value = display;
ObservanceRule or = vtz.ObservanceRules.Add(ObservanceRuleType.Standard);
or.OffsetFrom.TimeSpanValue = TimeSpan.FromMinutes(tz.nBias + tz.nDaylightBias).Negate();
or.OffsetTo.TimeSpanValue = TimeSpan.FromMinutes(tz.nBias + tz.nStandardBias).Negate();
or.TimeZoneNames.Add(standardDesc);
// If the standard date month is zero, it doesn't use standard time. Assume 01/01/1970 and
// set it up to return the offset.
if(tz.standardDate.wMonth == 0)
or.StartDateTime.DateTimeValue = new DateTime(1970, 1, 1);
else
{
// If year is zero, its a recurrence. If not zero, it's a fixed date.
if(tz.standardDate.wYear == 0)
{
or.StartDateTime.DateTimeValue = tz.standardDate.ToDateTime(1970);
RRuleProperty rrule = new RRuleProperty();
rrule.Recurrence.RecurYearly(
(tz.standardDate.wDay > 4) ? DayOccurrence.Last : (DayOccurrence)tz.standardDate.wDay,
tz.standardDate.DayOfWeek(), tz.standardDate.wMonth, 1);
or.RecurrenceRules.Add(rrule);
}
else
{
or.StartDateTime.DateTimeValue = tz.standardDate.ToDateTime();
or.RecurDates.Add(or.StartDateTime.DateTimeValue);
}
}
// If the daylight month is zero, it doesn't use DST. The standard rule will handle
// everything.
if(tz.daylightDate.wMonth != 0)
{
or = vtz.ObservanceRules.Add(ObservanceRuleType.Daylight);
or.OffsetFrom.TimeSpanValue = TimeSpan.FromMinutes(tz.nBias + tz.nStandardBias).Negate();
or.OffsetTo.TimeSpanValue = TimeSpan.FromMinutes(tz.nBias + tz.nDaylightBias).Negate();
or.TimeZoneNames.Add(dstDesc);
// If year is zero, its a recurrence. If not zero, it's a fixed date.
if(tz.daylightDate.wYear == 0)
{
or.StartDateTime.DateTimeValue = tz.daylightDate.ToDateTime(1970);
RRuleProperty rrule = new RRuleProperty();
rrule.Recurrence.RecurYearly(
(tz.daylightDate.wDay > 4) ? DayOccurrence.Last : (DayOccurrence)tz.daylightDate.wDay,
tz.daylightDate.DayOfWeek(), tz.daylightDate.wMonth, 1);
or.RecurrenceRules.Add(rrule);
}
else
{
or.StartDateTime.DateTimeValue = tz.daylightDate.ToDateTime();
or.RecurDates.Add(or.StartDateTime.DateTimeValue);
}
}
VCalendar.TimeZones.Add(vtz);
}
}
// Put the time zones in sorted order
VCalendar.TimeZones.Sort(true);
}
/// <summary>
/// This handles the Add command for the recurrence data grid
/// </summary>
/// <param name="source">The source of the event</param>
/// <param name="e">The event arguments</param>
protected void dgRecurrences_ItemCommand(object source, DataGridCommandEventArgs e)
{
if(e.CommandName == "Add")
{
// Save changes to the edited item if there is one
if(dgRecurrences.EditItemIndex != -1)
dgRecurrences_UpdateCommand(source, new DataGridCommandEventArgs(
dgRecurrences.Items[dgRecurrences.EditItemIndex], e.CommandSource, e));
// Ignore the request if the page is not valid
if(!Page.IsValid)
return;
// Add a new recurrence and go into edit mode on it
RecurringObject ro = GetCurrentObject();
RRuleProperty rrule = new RRuleProperty();
rrule.Recurrence.RecurDaily(1);
ro.RecurrenceRules.Add(rrule);
dgRecurrences.EditItemIndex = ro.RecurrenceRules.Count - 1;
dgRecurrences.DataSource = ro.RecurrenceRules;
dgRecurrences.DataBind();
}
}
/// <summary>
/// This is implemented to handle properties related to VEvent items
/// </summary>
/// <param name="propertyName">The name of the property</param>
/// <param name="parameters">A string collection containing the parameters and their values. If empty,
/// there are no parameters.</param>
/// <param name="propertyValue">The value of the property.</param>
protected virtual void VEventParser(string propertyName, StringCollection parameters, string propertyValue)
{
StringCollection sc;
string[] parts, parms;
int idx;
// The last entry is always CustomProperty so scan for length minus one
for(idx = 0; idx < ntvEvent.Length - 1; idx++)
if(ntvEvent[idx].IsMatch(propertyName))
break;
// An opening BEGIN:VEVENT property must have been seen
if(vEvent == null)
throw new PDIParserException(this.LineNumber, LR.GetString("ExParseNoBeginProp", "BEGIN:VEVENT",
propertyName));
// Handle or create the property
switch(ntvEvent[idx].EnumValue)
{
case PropertyType.Begin: // Handle nested objects
priorState.Push(currentState);
// Is it an alarm?
if(String.Compare(propertyValue.Trim(), "VALARM", StringComparison.OrdinalIgnoreCase) == 0)
{
vAlarm = new VAlarm();
vEvent.Alarms.Add(vAlarm);
currentState = VCalendarParserState.VAlarm;
}
else
{
// Unknown/custom object
currentState = VCalendarParserState.Custom;
CustomObjectParser(propertyName, parameters, propertyValue);
}
break;
case PropertyType.End:
// For this, the value must be VEVENT
if(String.Compare(propertyValue.Trim(), "VEVENT", StringComparison.OrdinalIgnoreCase) != 0)
throw new PDIParserException(this.LineNumber, LR.GetString("ExParseUnrecognizedTagValue",
ntvEvent[idx].Name, propertyValue));
// The event is added to the collection when created so we don't have to rely on an END tag
// to add it.
vEvent = null;
currentState = priorState.Pop();
break;
case PropertyType.Class:
vEvent.Classification.EncodedValue = propertyValue;
break;
case PropertyType.Categories:
// If this is seen more than once, just add the new stuff to the existing property
CategoriesProperty cp = new CategoriesProperty();
cp.DeserializeParameters(parameters);
cp.EncodedValue = propertyValue;
foreach(string s in cp.Categories)
vEvent.Categories.Categories.Add(s);
break;
case PropertyType.Resources:
// If this is seen more than once, just add the new stuff to the existing property
ResourcesProperty rp = new ResourcesProperty();
rp.DeserializeParameters(parameters);
rp.EncodedValue = propertyValue;
foreach(string s in rp.Resources)
vEvent.Resources.Resources.Add(s);
break;
case PropertyType.Url:
vEvent.Url.DeserializeParameters(parameters);
vEvent.Url.EncodedValue = propertyValue;
break;
case PropertyType.UniqueId:
vEvent.UniqueId.EncodedValue = propertyValue;
break;
case PropertyType.LastModified:
vEvent.LastModified.DeserializeParameters(parameters);
vEvent.LastModified.EncodedValue = propertyValue;
break;
case PropertyType.GeographicPosition:
vEvent.GeographicPosition.EncodedValue = propertyValue;
break;
case PropertyType.DateCreated:
vEvent.DateCreated.DeserializeParameters(parameters);
vEvent.DateCreated.EncodedValue = propertyValue;
break;
case PropertyType.StartDateTime:
vEvent.StartDateTime.DeserializeParameters(parameters);
vEvent.StartDateTime.EncodedValue = propertyValue;
break;
case PropertyType.EndDateTime:
vEvent.EndDateTime.DeserializeParameters(parameters);
vEvent.EndDateTime.EncodedValue = propertyValue;
break;
case PropertyType.TimeStamp:
vEvent.TimeStamp.DeserializeParameters(parameters);
vEvent.TimeStamp.EncodedValue = propertyValue;
break;
case PropertyType.Summary:
vEvent.Summary.DeserializeParameters(parameters);
vEvent.Summary.EncodedValue = propertyValue;
break;
case PropertyType.Description:
vEvent.Description.DeserializeParameters(parameters);
vEvent.Description.EncodedValue = propertyValue;
break;
case PropertyType.Location:
vEvent.Location.DeserializeParameters(parameters);
vEvent.Location.EncodedValue = propertyValue;
break;
case PropertyType.Priority:
vEvent.Priority.DeserializeParameters(parameters);
vEvent.Priority.EncodedValue = propertyValue;
break;
case PropertyType.Sequence:
vEvent.Sequence.DeserializeParameters(parameters);
vEvent.Sequence.EncodedValue = propertyValue;
break;
case PropertyType.Transparency:
vEvent.Transparency.DeserializeParameters(parameters);
vEvent.Transparency.EncodedValue = propertyValue;
break;
case PropertyType.RecurrenceCount:
vEvent.RecurrenceCount.DeserializeParameters(parameters);
vEvent.RecurrenceCount.EncodedValue = propertyValue;
break;
case PropertyType.Comment:
// If this is seen more than once, just add the new stuff to the existing property
if(vEvent.Comment.Value != null)
{
vEvent.Comment.EncodedValue += "\r\n";
vEvent.Comment.EncodedValue += propertyValue;
}
else
{
vEvent.Comment.DeserializeParameters(parameters);
vEvent.Comment.EncodedValue = propertyValue;
}
break;
case PropertyType.Contact:
ContactProperty c = new ContactProperty();
c.DeserializeParameters(parameters);
c.EncodedValue = propertyValue;
vEvent.Contacts.Add(c);
break;
case PropertyType.Organizer:
vEvent.Organizer.DeserializeParameters(parameters);
vEvent.Organizer.EncodedValue = propertyValue;
break;
case PropertyType.Attendee:
AttendeeProperty ap = new AttendeeProperty();
ap.DeserializeParameters(parameters);
ap.EncodedValue = propertyValue;
vEvent.Attendees.Add(ap);
break;
case PropertyType.RelatedTo:
RelatedToProperty rt = new RelatedToProperty();
rt.DeserializeParameters(parameters);
rt.EncodedValue = propertyValue;
vEvent.RelatedTo.Add(rt);
break;
case PropertyType.Attachment:
AttachProperty att = new AttachProperty();
att.DeserializeParameters(parameters);
att.EncodedValue = propertyValue;
vEvent.Attachments.Add(att);
break;
case PropertyType.RecurrenceId:
vEvent.RecurrenceId.DeserializeParameters(parameters);
vEvent.RecurrenceId.EncodedValue = propertyValue;
break;
case PropertyType.Status:
vEvent.Status.DeserializeParameters(parameters);
vEvent.Status.EncodedValue = propertyValue;
break;
case PropertyType.RequestStatus:
RequestStatusProperty rs = new RequestStatusProperty();
rs.DeserializeParameters(parameters);
rs.EncodedValue = propertyValue;
vEvent.RequestStatuses.Add(rs);
break;
case PropertyType.Duration:
vEvent.Duration.DeserializeParameters(parameters);
vEvent.Duration.EncodedValue = propertyValue;
break;
case PropertyType.AudioAlarm:
case PropertyType.DisplayAlarm:
case PropertyType.EMailAlarm:
case PropertyType.ProcedureAlarm:
// These are converted to a VAlarm object
vAlarm = new VAlarm();
ParseVCalendarAlarm(ntvEvent[idx].EnumValue, parameters, propertyValue);
vEvent.Alarms.Add(vAlarm);
vAlarm = null;
break;
case PropertyType.RecurrenceRule:
RRuleProperty rr = new RRuleProperty();
rr.DeserializeParameters(parameters);
rr.EncodedValue = propertyValue;
vEvent.RecurrenceRules.Add(rr);
break;
case PropertyType.RecurDate:
// There may be more than one date in the value. If so, split them into separate ones. This
// makes it easier to manage. They'll get written back out as individual properties but
// that's okay.
parts = propertyValue.Split(',', ';');
// It's important that we retain the same parameters for each one
parms = new string[parameters.Count];
parameters.CopyTo(parms, 0);
foreach(string s in parts)
{
sc = new StringCollection();
sc.AddRange(parms);
RDateProperty rd = new RDateProperty();
rd.DeserializeParameters(sc);
rd.EncodedValue = s;
vEvent.RecurDates.Add(rd);
}
break;
case PropertyType.ExceptionRule:
ExRuleProperty er = new ExRuleProperty();
er.DeserializeParameters(parameters);
er.EncodedValue = propertyValue;
vEvent.ExceptionRules.Add(er);
break;
case PropertyType.ExceptionDate:
// There may be more than one date in the value. If so, split them into separate ones. This
// makes it easier to manage. They'll get written back out as individual properties but
// that's okay.
parts = propertyValue.Split(',', ';');
// It's important that we retain the same parameters for each one
parms = new string[parameters.Count];
parameters.CopyTo(parms, 0);
foreach(string s in parts)
{
sc = new StringCollection();
sc.AddRange(parms);
ExDateProperty ed = new ExDateProperty();
ed.DeserializeParameters(sc);
ed.EncodedValue = s;
vEvent.ExceptionDates.Add(ed);
}
break;
case PropertyType.ExcludeStartDateTime:
// This is a custom property not defined by the spec
vEvent.ExcludeStartDateTime = (propertyValue[0] == '1');
break;
default: // Anything else is a custom property
CustomProperty cust = new CustomProperty(propertyName);
cust.DeserializeParameters(parameters);
cust.EncodedValue = propertyValue;
vEvent.CustomProperties.Add(cust);
break;
}
}
/// <summary>
/// This is implemented to handle properties related to observance rule items in VTimeZone objects
/// </summary>
/// <param name="propertyName">The name of the property.</param>
/// <param name="parameters">A string collection containing the parameters and their values. If empty,
/// there are no parameters.</param>
/// <param name="propertyValue">The value of the property.</param>
protected virtual void ObservanceRuleParser(string propertyName, StringCollection parameters, string propertyValue)
{
StringCollection sc;
string[] parts, parms;
int idx;
// The last entry is always CustomProperty so scan for length minus one
for(idx = 0; idx < ntvORule.Length - 1; idx++)
if(ntvORule[idx].IsMatch(propertyName))
break;
// An opening BEGIN:STANDARD or BEGIN:DAYLIGHT property must have been seen.
if(obsRule == null)
throw new PDIParserException(this.LineNumber, LR.GetString("ExParseNoBeginProp",
"BEGIN:STANDARD/BEGIN:DAYLIGHT", propertyName));
// Handle or create the property
switch(ntvORule[idx].EnumValue)
{
case PropertyType.Begin: // Handle unknown nested objects
priorState.Push(currentState);
currentState = VCalendarParserState.Custom;
CustomObjectParser(propertyName, parameters, propertyValue);
break;
case PropertyType.End:
// For this, the value must be STANDARD or DAYLIGHT depending on the rule type
if((obsRule.RuleType == ObservanceRuleType.Standard &&
String.Compare(propertyValue.Trim(), "STANDARD", StringComparison.OrdinalIgnoreCase) != 0) ||
(obsRule.RuleType == ObservanceRuleType.Daylight &&
String.Compare(propertyValue.Trim(), "DAYLIGHT", StringComparison.OrdinalIgnoreCase) != 0))
{
throw new PDIParserException(this.LineNumber, LR.GetString("ExParseUnrecognizedTagValue",
ntvORule[idx].Name, propertyValue));
}
// The rule is added to the collection when created so we don't have to rely on an END tag to
// add it.
obsRule = null;
currentState = priorState.Pop();
break;
case PropertyType.StartDateTime:
obsRule.StartDateTime.DeserializeParameters(parameters);
obsRule.StartDateTime.EncodedValue = propertyValue;
break;
case PropertyType.TimeZoneOffsetFrom:
obsRule.OffsetFrom.DeserializeParameters(parameters);
obsRule.OffsetFrom.EncodedValue = propertyValue;
break;
case PropertyType.TimeZoneOffsetTo:
obsRule.OffsetTo.DeserializeParameters(parameters);
obsRule.OffsetTo.EncodedValue = propertyValue;
break;
case PropertyType.Comment:
// If this is seen more than once, just add the new stuff to the existing property
if(obsRule.Comment.Value != null)
{
obsRule.Comment.EncodedValue += "\r\n";
obsRule.Comment.EncodedValue += propertyValue;
}
else
{
obsRule.Comment.DeserializeParameters(parameters);
obsRule.Comment.EncodedValue = propertyValue;
}
break;
case PropertyType.RecurrenceRule:
RRuleProperty rr = new RRuleProperty();
rr.DeserializeParameters(parameters);
rr.EncodedValue = propertyValue;
obsRule.RecurrenceRules.Add(rr);
break;
case PropertyType.RecurDate:
// There may be more than one date in the value. If so, split them into separate ones. This
// makes it easier to manage. They'll get written back out as individual properties but
// that's okay.
parts = propertyValue.Split(',', ';');
// It's important that we retain the same parameters for each one
parms = new string[parameters.Count];
parameters.CopyTo(parms, 0);
foreach(string s in parts)
{
sc = new StringCollection();
sc.AddRange(parms);
RDateProperty rd = new RDateProperty();
rd.DeserializeParameters(sc);
rd.EncodedValue = s;
obsRule.RecurDates.Add(rd);
}
break;
case PropertyType.TimeZoneName:
TimeZoneNameProperty tzn = new TimeZoneNameProperty();
tzn.DeserializeParameters(parameters);
tzn.EncodedValue = propertyValue;
obsRule.TimeZoneNames.Add(tzn);
break;
default: // Anything else is a custom property
CustomProperty cust = new CustomProperty(propertyName);
cust.DeserializeParameters(parameters);
cust.EncodedValue = propertyValue;
obsRule.CustomProperties.Add(cust);
break;
}
}
//=====================================================================
/// <summary>
/// Add a recurrence rule
/// </summary>
/// <param name="sender">The sender of the event</param>
/// <param name="e">The event parameters</param>
private void btnAddRRule_Click(object sender, EventArgs e)
{
using(RecurrencePropertiesDlg dlg = new RecurrencePropertiesDlg())
{
if(dlg.ShowDialog() == DialogResult.OK)
{
// Add the recurrence rule to the collection and the list box using the appropriate type
if(!editsExceptions)
{
RRuleProperty rr = new RRuleProperty();
dlg.GetRecurrence(rr.Recurrence);
rRules.Add(rr);
lbRRules.Items.Add(rr.Recurrence.ToString());
}
else
{
ExRuleProperty er = new ExRuleProperty();
dlg.GetRecurrence(er.Recurrence);
rRules.Add(er);
lbRRules.Items.Add(er.Recurrence.ToString());
}
}
}
this.SetButtonStates();
}
