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 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

SchedulerDataStorage.ReminderDstBehaviorType Property

Gets or sets the reminder's behavior if the reminder alert falls within the interval that actually doesn't exist because of the Daylight Saving Time shift.

Namespace:DevExpress.XtraScheduler
Assembly:DevExpress.XtraScheduler.v19.1.dll

Expanded Syntax

Property value

Type: DstBehaviorType
A DevExpress.XtraScheduler.DstBehaviorType enumeration value that specifies at what time the alert is triggered.
The default is DstBehaviorType.AlertAfterDstShift.

Expanded Remarks

This property enables you to correct the reminder's behavior for a series of recurring appointments if an occurrence in a series falls in a DST shift (in the United States, it is the interval between 2:00:00 and 2:59:59 local time on the Daylight Saving Time start date, the time interval that actually doesn't exist). By default, the property is set to DevExpress.XtraScheduler.DstBehaviorType.AlertAfterDstShift and if the alert time falls in the DST shift, an alert is invoked at the end of the DST shift, i.e. at 3 AM in the United States.

To invoke the reminder alert at the specified time before the actual start of an appointment, set the ReminderDstBehaviorType property to the DevExpress.XtraScheduler.DstBehaviorType.Update value. The alert time will be updated as required.

To dismiss the reminder when it falls in the DST shift, use the DevExpress.XtraScheduler.DstBehaviorType.Dismiss property value.

Consider two scenarios with different settings for the ReminderDstBehaviorType property.

Scenario 1:

DevExpress.XtraScheduler.Appointment.Start = 2:05, DevExpress.XtraScheduler.ReminderBase.TimeBeforeStart = 6 min.

Value Behavior
DevExpress.XtraScheduler.DstBehaviorType.Dismiss the reminder will be dismissed
DevExpress.XtraScheduler.DstBehaviorType.AlertAfterDstShift the alert will be triggered at 3:00 AM.
DevExpress.XtraScheduler.DstBehaviorType.Update the alert will be triggered at 1:59 AM.

Scenario 2:

DevExpress.XtraScheduler.Appointment.Start = 2:30, DevExpress.XtraScheduler.ReminderBase.TimeBeforeStart = 6 min.

Value Behavior
DevExpress.XtraScheduler.DstBehaviorType.Dismiss the reminder will be dismissed
DevExpress.XtraScheduler.DstBehaviorType.AlertAfterDstShift the alert will be triggered at 3:24 AM.
DevExpress.XtraScheduler.DstBehaviorType.Update the alert will be triggered at 3:24 AM.

Expanded See Also

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