2.1.3.1.1.14 Property: X-PRIMARY-CALENDAR
RFC Reference: N/A
Number of Instances Allowed: 0, 1
Format: Boolean ([RFC2445] section 4.3.2)
Brief Description: Specifies whether or not the iCalendar file represents a primary calendar.
Importing to Calendar objects
This property SHOULD<30> be ignored.
Exporting from Calendar objects
If this iCalendar does not represent the primary calendar of the owner, this property SHOULD be omitted. Otherwise, this property SHOULD<31> be set to 'TRUE'.