SchedulerControl.AppointmentWindowShowing Event

Occurs before showing the Appointment Window. This is a routed event.

Namespace: DevExpress.Xpf.Scheduling

Assembly: DevExpress.Xpf.Scheduling.v20.1.dll


public event AppointmentWindowShowingEventHandler AppointmentWindowShowing
Public Event AppointmentWindowShowing As AppointmentWindowShowingEventHandler

Event Data

The AppointmentWindowShowing event's data class is AppointmentWindowShowingEventArgs. The following properties provide information specific to this event:

Property Description
Cancel Gets or sets whether the event should be canceled. Inherited from CancelRoutedEventArgs.
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.
ViewModel Provides access to the View Model for the invoked window. Inherited from WindowShowingEventArgs<T>.
Window Gets or sets the window to which the event is raised. Inherited from WindowShowingEventArgs<T>.


Handle the AppointmentWindowShowing event to specify the window displayed when editing the appointment, or hide it. You can specify a window for display using the WindowShowingEventArgs<T>.Window property, or not display any window at all by setting the CancelRoutedEventArgs.Cancel property to true.


You can also set the OptionsWindows.AppointmentWindowType property in XAML to replace the built-in editor with a custom appointment editing window. Learn more at the How to: Customize Editing and Recurrence Dialogs topic.

See Also