GanttView.PredecessorLinkEditCanceled Event

Occurs when the connector editing was canceled. This is a routed event.

Assembly : DevExpress.Xpf.Gantt.v25.2.dll

NuGet Package : DevExpress.Wpf.Gantt

Declaration

C#
VB.NET

csharp

public event EventHandler<PredecessorLinkEditCanceledEventArgs> PredecessorLinkEditCanceled

Public Event PredecessorLinkEditCanceled As EventHandler(Of PredecessorLinkEditCanceledEventArgs)

Event Data

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

Property	Description
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.
LinkType	Gets the type of the edited link.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
Predecessor	Gets the predecessor task that is linked to the successor task after the canceled connector editing.
PredecessorLink	Gets an edited predecessor link (connector).
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.
Successor	Gets the successor task that is linked to the predecessor task after the canceled connector editing.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

The PredecessorLinkEditCanceled event occurs when the connector editing was canceled for the following reasons:

end user pressed ESC
GanttControl’s owner window lost its focus
end user dragged th edited connector and released the mouse ( MouseUp occurred) outside the connector thumb or connector remove zone.

If creating a new connector was canceled, the following event argument’s properties return null :

Use the event argument’s PredecessorLinkEditCanceledEventArgs.Predecessor property get the edited connector’s predecessor.