GanttView.TasksScheduled Event

Occurs after Gantt tasks have been rescheduled and allows you to rollback the latest edit changes.

Namespace: DevExpress.Xpf.Gantt

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


public event EventHandler<TasksScheduledEventArgs> TasksScheduled
Public Event TasksScheduled As EventHandler(Of TasksScheduledEventArgs)

Event Data

The TasksScheduled event's data class is TasksScheduledEventArgs. 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.
InvalidPredecessorLinks Gets a collection of predecessor links that are invalid after scheduling.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RollbackChanges Gets or sets whether the control must rollback changes that caused the scheduling.
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.


The TasksScheduled event allows you to rollback changes if they create invalid links.

Use the TasksScheduledEventArgs.InvalidPredecessorLinks property to access a collection of invalid links. Set the TasksScheduledEventArgs.RollbackChanges property to true to rollback the latest changes.

<dxgn:GanttControl ...>
        <dxgn:GanttView ... 
private void GanttView_TasksScheduled(object sender, DevExpress.Xpf.Gantt.TasksScheduledEventArgs e) {
    if (e.InvalidPredecessorLinks.Count > 0) e.RollbackChanges = true;
See Also