GanttView.BeginTaskMove Event

Occurs when an end user starts editing task start date by dragging the task (on MouseDown) in the Gantt area. This is a routed event.

Namespace: DevExpress.Xpf.Gantt

Assembly: DevExpress.Xpf.Gantt.v21.2.dll

NuGet Package: DevExpress.Wpf.Gantt

Declaration

C#

public event EventHandler<BeginTaskMoveEventArgs> BeginTaskMove

VB.NET

Public Event BeginTaskMove As EventHandler(Of BeginTaskMoveEventArgs)

Event Data

The BeginTaskMove event's data class is BeginTaskMoveEventArgs. 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.
Node	Gets the task whose start date is about to be edited.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
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 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

Use the event arguments’ BeginTaskMoveEventArgs.Node property to get a task whose start date is about to be edited.