SchedulerControl.AllowAppointmentCreate Event

Occurs when an end-user tries to create a new appointment and the OptionsCustomization.AllowAppointmentCreate property is set to Custom.

Namespace: DevExpress.Xpf.Scheduler

Assembly: DevExpress.Xpf.Scheduler.v14.2.dll

Declaration

C#

public event AppointmentOperationEventHandler AllowAppointmentCreate

VB.NET

Public Event AllowAppointmentCreate As AppointmentOperationEventHandler

Event Data

The AllowAppointmentCreate event's handler receives an argument of the AppointmentOperationEventArgs type. The following properties provide information specific to this event:

Property	Description
Allow	Gets or sets a value indicating whether an end-user is allowed to perform a particular action.
Appointment	Gets the appointment for which the event was raised. Inherited from AppointmentEventArgs.
Recurring	Gets or sets a value indicating if the appointment is recurring.

Remarks

Handle the AllowAppointmentCreate event to manually decide whether to allow an end-user to create a new appointment or not. Note that the appointment to create can be accessed via the AppointmentEventArgs.Appointment property. To prevent an appointment from being created, set the AppointmentOperationEventArgs.Allow property to false.

NOTE

The AllowAppointmentCreate event is fired only if the OptionsCustomization.AllowAppointmentCreate property is set to UsedAppointmentType.Custom.

Examples

This example demonstrates how to prevent end-users from creating appointments within a certain time interval (from 2 PM to 3 PM). To implement end-user restrictions, handle the SchedulerControl.AllowAppointmentCreate event to prevent end-users from creating appointments within a certain time interval and the SchedulerControl.AllowAppointmentConflicts event to prevent an existing appointment from being dragged to the same time interval: