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View this topic on docs.devexpress.com (Learn more)

SchedulerDataStorage.FilterAppointment Event

Hides specific appointments in the Scheduler control.

Namespace:DevExpress.XtraScheduler
Assembly:DevExpress.XtraScheduler.v19.2.dll

Expanded Syntax

Expanded Event Data

The event handler receives an argument of type PersistentObjectCancelEventArgs containing data related to this event.

The following PersistentObjectCancelEventArgs properties provide information specific to this event.
Property Description
Cancel Gets or sets whether to cancel the operation.

Expanded Remarks

Handle the FilterAppointment event to hide specific appointments in the Scheduler control. This event fires each time when the layout of the Scheduler control changes (on resizing the control, adding a new appointment, modifying existing appointments, etc.) You can also force the layout update by calling the SchedulerViewBase.LayoutChanged method.

The FilterAppointment event occurs for each appointment in the Appointments storage, in turn. If the DevExpress.XtraScheduler.PersistentObjectCancelEventArgs.Cancel parameter is set to true for the currently processed appointment, then the Scheduler control does not display this appointment.

Important

Subscribe to the FilterAppointment event before storage initialization (before the DevExpress.XtraScheduler.PersistentObjectStorage<T>.DataSource is assigned), otherwise the filter is not applied and the RefreshData method call is required for proper operation.

This event allows you to specify appointments for display. Do not modify appointment properties, and do not add or remove appointments within this event handler. An attempt to do so may result in an unhandled exception.

Expanded Example

The following example demonstrates how to filter the appointments shown within a Scheduler Control according to some condition. For this the FilterAppointment event is used. The code below demonstrates how to hide all tentative appointments (those whose status is set to DevExpress.XtraScheduler.AppointmentStatusType.Tentative).

Expanded See Also

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