// Token: 0x06000173 RID: 371 RVA: 0x0000D008 File Offset: 0x0000B208 internal static bool CancelCalendarItem(UserContext userContext, CalendarItemBase calendarItemBase, EditCalendarItemHelper.CancelRangeType cancelRange, ExDateTime cancelFromDateTime, out InfobarMessage infobarMessage) { bool result = true; infobarMessage = null; CalendarItem calendarItem = calendarItemBase as CalendarItem; try { if (calendarItem == null) { StoreObjectId masterStoreObjectId = CalendarUtilities.GetMasterStoreObjectId(calendarItemBase); calendarItem = Utilities.GetItem <CalendarItem>(userContext, masterStoreObjectId, new PropertyDefinition[0]); if (calendarItem != null) { calendarItem.OpenAsReadWrite(); } } if (cancelRange == EditCalendarItemHelper.CancelRangeType.Occurrence || cancelRange == EditCalendarItemHelper.CancelRangeType.None) { EditCalendarItemHelper.CancelCalendarItem(userContext, calendarItemBase); } else if (cancelRange == EditCalendarItemHelper.CancelRangeType.All) { EditCalendarItemHelper.CancelCalendarItem(userContext, calendarItem); } else if (cancelRange == EditCalendarItemHelper.CancelRangeType.FromDate) { int cancelRecurrenceCount = CalendarItemUtilities.GetCancelRecurrenceCount(calendarItem, cancelFromDateTime); if (cancelRecurrenceCount == 0) { EditCalendarItemHelper.CancelCalendarItem(userContext, calendarItem); } else if (cancelRecurrenceCount > 0) { calendarItem.Recurrence = new Recurrence(calendarItem.Recurrence.Pattern, new EndDateRecurrenceRange(calendarItem.Recurrence.Range.StartDate, cancelFromDateTime.IncrementDays(-1))); if (calendarItem.IsMeeting && calendarItem.MeetingRequestWasSent) { result = CalendarUtilities.SendMeetingMessages(userContext, calendarItem, true, out infobarMessage); } else { result = CalendarUtilities.SaveCalendarItem(calendarItem, userContext, out infobarMessage); } } } } finally { if (calendarItem != null && calendarItem != calendarItemBase) { calendarItem.Dispose(); } } return(result); }