Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

TasksScheduledEventArgs.InvalidPredecessorLinks Property

Gets a collection of predecessor links that are invalid after scheduling.

Namespace: DevExpress.Xpf.Gantt

Assembly: DevExpress.Xpf.Gantt.v24.2.dll

NuGet Package: DevExpress.Wpf.Gantt

#Declaration

#Property Value

Type Description
ReadOnlyCollection<Object>

A collection of invalid predecessor links.

#Remarks

The InvalidPredecessorLinks property does not return any invalid links if the link validation is disabled (the AllowValidatePredecessorLinks is set to false).

You can rollback the edit changes if they have become the reason for invalid links.

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