In addition to UID every overridden instance has its own RECURRENCE-ID which identifies the instance that this component overrides. The uppercase and lowercase UID are treated as different ids. Important! iOS Calendar UID is case sensitive, it requires uppercase UID only. Typically this UID is also used as a calendar (.ics) file name. The above event with EXDATE in iCalendar format: BEGIN:VCALENDARĮXDATE TZID=America/Toronto:20170516T100000ĮXDATE TZID=America/Toronto:20170517T100000Īll components within an event/to-do share the same UID. Below you can see an example of the same event with 2 instances, on Tuesday and Wednesday, being deleted: The EXDATE property is called exception dates and can contain more than one exception date as every EXDATE property value. When you delete the event instance, the client application will add an EXDATE property for every event instance that was deleted with date and time of the instance that should not occur. RECURRENCE-ID TZID=America/Toronto:20170518T100000ĮND:VCALENDAR What Happens when You Delete a Recurring Event Instance? Note the 2 VEVENT components stored in it – the first one contains a recurring event description and the second one - event instance that was overridden by the client ("Final Meeting"). Here is its representation in iCalendar format. Here is the example of the above event with the last instance summary being changed to “Final Meeting” and start time being set to 11:00AM: This new component contains information about updated event instance and has a RECURRENCE-ID property that stores date and time of the event instance.
ICS FILE DETAILS UPDATE
When you change a separate event instance in your CalDAV client application, for example when you update the time or summary for a particular day, the client submits to the server the updated iCalendar object with a new component added to the event. What Happens when You Update an Instance of a Recurring Event? You can find more about calendar folders and calendar files in the Creating CalDAV Server article. ics file is represented by ICalendarFileAsync interface. Every calendar file (.ics file) on a CalDAV server stores a single event or to-do, even though the info about event/to-do is wrapped in “VCALENDAR” block. The calendar is a calendar folder and is represented by ICalendarFolderAsync interface.
However when you update an event instance of a recurring event, more components are created, see below.ĭo not confuse the VCALENDAR object that you will find inside a. Below you can see this event in iCalendar format, you will find a single VEVENT definition in it: BEGIN:VCALENDARĭTEND TZID=America/Toronto:20170515T110000ĭTSTART TZID=America/Toronto:20170515T100000Ī non-recurring event or recurring event that does not have overridden instances consists of a single component.
Note that it consists of a single event component. Below is an iPhone Calendar application with a recurring event that has 4 instances Monday through Thursday: You can see event/to-do instances when calendar is displayed in your client application. Recurring event/to-do expands to event/to-do instances. It also typically contains one or more time zone component. Every event/to-do object consists of one or more event or to-do components. Event/To-do Components and InstancesĮvery calendar file stored on a CalDAV server contains a single iCalendar object with a single event or to-do defined inside it.
ICS FILE DETAILS HOW TO
To fond how to parse and generate iCalendar data read articles in the Using IT Hit Collab Library API section. The items are automatically imported into your calendar.This article describes how iCalendar data is stored on a CalDAV server.
ICS FILE DETAILS PC
Select the calendar file from your PC and select OK. In Import and Export Wizard box, select Import an iCalendar (.ics)or vCalendar file (.vcs),and then Next. In Outlook, select File > Open & Export > Import/Export. Select the arrow to overlay the calendar if you want. Any calendar can be turned on/off in the Folder Pane. Your calendar items appear and will synchronize. Outlook asks if you would like to add this calendar and subscribe to updates. Paste the URL from your internet calendar and select OK. ics file will be transferred to the calendar. To use this file, a user needs to import it to their calendar program all the details stored in the. Open your Outlook calendar, select Add > From Internet. ics file is a plain text iCalendar file containing details about a calendar event, such as the event’s description, beginning and ending times, location, etc. Scroll down to Integrate calendar and copy the Secret address in iCal formatURL. In Google Calendar, select Options > Settings and sharing. You can add online calendars from Google and others right into Outlook.
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