Represents a collection of ByDay objects.

For a list of all members of this type, see ByDayCollection Members.

System.Object
   System.Collections.CollectionBase
      Aspose.iCalendar.ByDayCollection

Remarks

Corresponds to the BYDAY part of the recurrence rule.

The BYDAY rule specifies a list of days of the week for a monthly or yearly recurrence rule.

For each day of the week, a specific Nth occurrence or all occurrences can be specified.

Example

Monthly on the 1st Friday until December 24, 1997:

[C#]

//Create the pattern programmatically.
RecurrencePattern pattern = new RecurrencePattern();
pattern.StartDate = new DateTime(1997, 9, 5, 9, 0, 0);
RecurrenceRule rule = pattern.RRules.Add();
rule.Frequency = Frequency.Monthly;
rule.Until = new DateTime(1997, 12, 24);
rule.ByDay.Add(1, DayOfWeek.Friday);

DateCollection dates = pattern.GenerateOccurrences(
    new DateTime(1997, 9, 5, 9, 0, 0), 
    new DateTime(1998, 1, 1, 0, 0, 0));

foreach (DateTime d in dates)
    Console.WriteLine(d);

...

//Create the pattern from iCalendar string.
RecurrencePattern pattern = new RecurrencePattern(
    "DTSTART;TZID=US-Eastern:19970905T090000\n" +
    "RRULE:FREQ=MONTHLY;UNTIL=19971224T000000Z;BYDAY=1FR");

DateCollection dates = pattern.GenerateOccurrences(
    new DateTime(1997, 9, 5, 9, 0, 0), 
    new DateTime(1998, 1, 1, 0, 0, 0));

foreach (DateTime d in dates)
    Console.WriteLine(d);

[VB]

'Create the pattern programmatically.
Dim pattern As RecurrencePattern = New RecurrencePattern
pattern.StartDate = New DateTime(1997, 9, 5, 9, 0, 0)
Dim rule As RecurrenceRule = pattern.RRules.Add()
rule.Frequency = Frequency.Monthly
rule.Until = New DateTime(1997, 12, 24)
rule.ByDay.Add(1, DayOfWeek.Friday)

Dim dates As DateCollection = pattern.GenerateOccurrences( _
    New DateTime(1997, 9, 5, 9, 0, 0), New DateTime(1998, 1, 1, 0, 0, 0))

For Each d As DateTime In dates
    Console.WriteLine(d)
Next

...

'Create the pattern from iCalendar string.
Dim pattern As RecurrencePattern = New RecurrencePattern( _
    "DTSTART;TZID=US-Eastern:19970905T090000" + ControlChars.CrLf + _
    "RRULE:FREQ=MONTHLY;UNTIL=19971224T000000Z;BYDAY=1FR")

Dim dates As DateCollection = pattern.GenerateOccurrences( _
    New DateTime(1997, 9, 5, 9, 0, 0), New DateTime(1998, 1, 1, 0, 0, 0))

For Each d As DateTime In dates
    Console.WriteLine(d)
Next

Requirements

Namespace: Aspose.iCalendar

Assembly: Aspose.iCalendar (in Aspose.iCalendar.dll)

See Also

ByDayCollection Members | Aspose.iCalendar Namespace