SchedulerControl.AppointmentDragOver Event

Raised repeatedly while the user drags appointments in the Scheduler control.

Namespace: DevExpress.WinUI.Scheduler

Assembly: DevExpress.WinUI.Scheduler.v22.1.dll

NuGet Package: DevExpress.WinUI

Declaration

C#

public event EventHandler<AppointmentDragOverEventArgs> AppointmentDragOver

VB.NET

Public Event AppointmentDragOver As EventHandler(Of AppointmentDragOverEventArgs)

Event Data

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

Property	Description
AcceptedOperation	Specifies the operations the user is allowed to perform. Inherited from AppointmentDragEventArgsBase.
Cancel	Specifies whether to cancel the drag-drop operation. Inherited from AppointmentDragEventArgsBase.
DraggingAppointments	Returns the collection of appointments the user is dragging. Inherited from AppointmentDragDropEventArgsBase.
DragUIOverride	Returns the visual representation of appointments the user is dragging. Inherited from AppointmentDragEventArgsBase.
Handled	Inherited from SchedulerDragEventArgsBase.
SourceAppointments	Returns the collection of appointments before the changes the user attempts to apply. Inherited from AppointmentDragDropEventArgsBase.

Remarks

Use the AcceptedOperation event parameter to limit the actions available to the user. See the example below.

C#

private void Scheduler_AppointmentDragOver(object sender, AppointmentDragOverEventArgs e) {
    foreach (AppointmentItem item in e.DraggingAppointments)
        if ((item.Start.Hour < 7) || (item.Start.Hour > 20) || (item.End.Hour > 20))
            e.AcceptedOperation = Windows.ApplicationModel.DataTransfer.DataPackageOperation.None;
}

VB.NET

Private Sub Scheduler_AppointmentDragOver(ByVal sender As Object, ByVal e As AppointmentDragOverEventArgs)
    For Each item As AppointmentItem In e.DraggingAppointments
        If (item.Start.Hour < 7) OrElse (item.Start.Hour > 20) OrElse (item.End.Hour > 20) Then
            e.AcceptedOperation = Windows.ApplicationModel.DataTransfer.DataPackageOperation.None
        End If
    Next item
End Sub