wpf-devexpress-dot-xpf-dot-scheduling-dot-reminderitem-5df8bb23.md
Gets or sets the date and time for firing an alert.
Namespace : DevExpress.Xpf.Scheduling
Assembly : DevExpress.Xpf.Scheduling.v25.2.dll
NuGet Package : DevExpress.Wpf.Scheduling
public DateTime AlertTime { get; set; }
Public Property AlertTime As Date
| Type | Description |
|---|---|
| DateTime |
A DateTime object which specifies the reminder’s alert time.
|
When the time specified by the AlertTime property arrives, the reminder is added to the SchedulerControl.TriggeredReminders collection, the SchedulerControl.RemindersWindowShowing event occurs and the Recurrence Window dialog is invoked.
Default value of the AlertTime property is calculated as follows:
ReminderItem.AlertTime = AppointmentItem.Start - ReminderItem.TimeBeforeStart.
You can set the AlertTime value explicitly in code. In this situation, the ReminderItem.TimeBeforeStart value remains unchanged and the formula does not apply.
Note
The ReminderItem.AlertTime value determines when to fire an alert. The ReminderItem.TimeBeforeStart value is displayed and set in the Recurrence Window dialog.
// Remove previous reminders
appointment.Reminders.Clear();
// Set multiple reminders for an appointment
ReminderItem reminder1 = appointment.CreateNewReminder();
ReminderItem reminder2 = appointment.CreateNewReminder();
reminder1.AlertTime = DateTime.Now.AddMinutes(15);
reminder2.TimeBeforeStart = new TimeSpan(0, 30, 0);
appointment.Reminders.Add(reminder1);
appointment.Reminders.Add(reminder2);
' Remove previous reminders
appointment.Reminders.Clear()
' Set multiple reminders for an appointment
Dim reminder1 As ReminderItem = appointment.CreateNewReminder()
Dim reminder2 As ReminderItem = appointment.CreateNewReminder()
reminder1.AlertTime = Date.Now.AddMinutes(15)
reminder2.TimeBeforeStart = New TimeSpan(0, 30, 0)
appointment.Reminders.Add(reminder1)
appointment.Reminders.Add(reminder2)
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the AlertTime property.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
ReminderItem reminder2 = appointment.CreateNewReminder();
reminder1.AlertTime = DateTime.Now.AddMinutes(15);
reminder2.TimeBeforeStart = new TimeSpan(0, 30, 0);
Dim reminder2 As ReminderItem = appointment.CreateNewReminder()
reminder1.AlertTime = Date.Now.AddMinutes(15)
reminder2.TimeBeforeStart = New TimeSpan(0, 30, 0)
See Also