GanttView.AddingNewResourceLink Event

Occurs before the GanttControl creates a resource link. This event allows you to change this link.

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

NuGet Package : DevExpress.Wpf.Gantt

Declaration

C#
VB.NET

csharp

public event EventHandler<AddingNewResourceLinkEventArgs> AddingNewResourceLink

Public Event AddingNewResourceLink As EventHandler(Of AddingNewResourceLinkEventArgs)

Event Data

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

Property	Description
AllocationPercentage	Gets a percentage of time the resource spends on a task.
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.
NewResourceLink	Gets or sets a newly created resource 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.
Resource	Gets a resource for which a new link is being added.
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.
Task	Gets a task for which a new link is being added.

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

Xaml

xaml

<dxgn:GanttControl ItemsSource="{Binding Tasks}">
    <dxgn:GanttColumn BindTo="Name" Width="Auto"/>
    <dxgn:GanttColumn BindTo="ResourceLinks" AllowEditing="True"/>
    <dxgn:GanttControl.View>
        <dxgn:GanttView ResourcesSource="{Binding Resources}"
                        ResourceLinksPath="ResourceIds"
                        AddingNewResourceLink="GanttView_AddingNewResourceLink"
                        ... >
        </dxgn:GanttView>
    </dxgn:GanttControl.View>
</dxgn:GanttControl>

csharp

void GanttView_AddingNewResourceLink(object sender, AddingNewResourceLinkEventArgs e) {
    e.NewResourceLink = ((GanttResourceItem)e.Resource).Id;
}

Run Demo: Assign Resources to Tasks without Links