GanttView.PredecessorLinkEdited Event

Occurs when an end user has finished editing a predecessor link (connector), and allows you to cancel the link editing. This is a routed event.

Namespace : DevExpress.Xpf.Gantt

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

NuGet Package : DevExpress.Wpf.Gantt

csharp

public event EventHandler<PredecessorLinkEditedEventArgs> PredecessorLinkEdited

Public Event PredecessorLinkEdited As EventHandler(Of PredecessorLinkEditedEventArgs)

Event Data

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

Property	Description
Cancel	Gets or sets whether the applied changes must be canceled.
ChangeType	Gets a type of change an end user made (created, deleted, or changed a predecessor link).
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.
OldSuccessor	Gets the successor task that was linked to the predecessor task before editing the connector.
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 a predecessor task.
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 editing the connector.

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 event arguments properties allow you to get the following info about the edited predecessor link (connector):

Property	Description
PredecessorLinkEditedEventArgs.OldSuccessor	Gets the successor task that was linked to the predecessor task before editing the connector.
PredecessorLinkEditedEventArgs.Successor	Gets the successor task that is linked to the predecessor task after editing the connector.
PredecessorLinkEditedEventArgs.Predecessor	Gets a predecessor task.
PredecessorLinkEditedEventArgs.PredecessorLink	Gets an edited predecessor link (connector).
PredecessorLinkEditedEventArgs.LinkType	Gets the type of the edited link.
PredecessorLinkEditedEventArgs.ChangeType	Gets a type of change an end user made (created, deleted, or changed a predecessor link).

You can undo the applied changes by setting the PredecessorLinkEditedEventArgs.Cancel property to true.