DiagramBase.LinkCreating Event

A validation event raised while the user is drawing a new link.

Namespace: MindFusion.Diagramming.Wpf
Assembly: MindFusion.Diagramming.Wpf

 Syntax

C#

public event EventHandler<LinkValidationEventArgs> LinkCreating

Visual Basic

Public Event LinkCreating As EventHandler(Of LinkValidationEventArgs)

 Event Data

LinkCreating event handlers receive an argument of type LinkValidationEventArgs. The following LinkValidationEventArgs members provide information relevant to the event:

Member name	Description
Link	The DiagramLink that is being created.
MousePosition	A Point specifying the mouse cursor position.
Destination	The DiagramNode that will be set as the link's Destination if this event is validated.
AnchorIndex	Index of the anchor point to which the link will be connected if this event is validated.
TableRow	Index of the table row to which the link will be connected if this event is validated.
Cancel	Set this property to true to prevent the user from creating the link at the current location. That displays the Stop mouse cursor and releasing the button will cancel the operation.
CancelDrag	Call this method to immediately stop the link creation.

 Remarks

LinkCreating is raised after each mouse movement while drawing a new link. Setting Cancel to true will change the mouse cursor to DisallowCursor (a Stop icon by default). The event is raised once again when the mouse button is released. Setting Cancel to true in that case will cancel the link creation.