Gets or sets the start day of week. This is significant when a WEEKLY RRULE has an interval greater than 1, and a BYDAY rule part is specified. This is also significant when in a YEARLY RRULE when a BYWEEKNO rule part is specified. The default value is MO.

'Declaration
 
Public Property StartDayOfWeek As DayOfWeek

public DayOfWeek StartDayOfWeek {get; set;}