This enumeration specifies the type of selection that a user can perform with a Calendar control. Day allows the user to select a single day, DayWeek allows the user to select a single day or an entire week, DayWeekMonth allows a specific day, week, or month to be chosen, and None does not allow any kind of date selection. The calendar does not support noncontiguous multiple day selections.
public enum CalendarSelectionMode { None = 0, Day = 1, DayWeek = 2, DayWeekMonth = 3 }