If the specified date occurs more than once in the date list, only the first date is removed. You must call the MonthCalendar.UpdateBoldedDates method to ensure that the display is updated to reflect the removal.
Requirements
Namespace: System.Windows.Forms Assembly: System.Windows.Forms (in System.Windows.Forms.dll) Assembly Versions: 1.0.5000.0, 2.0.0.0