DiagramControl.ConnectionChanged Event

Occurs after the connection has been changed by a user.

Assembly : DevExpress.XtraDiagram.v25.2.dll

NuGet Package : DevExpress.Win.Diagram

Declaration

C#
VB.NET

csharp

[DiagramCategory(DiagramCategory.DiagramItems)]
public event EventHandler<DiagramConnectionChangedEventArgs> ConnectionChanged

<DiagramCategory(DiagramCategory.DiagramItems)>
Public Event ConnectionChanged As EventHandler(Of DiagramConnectionChangedEventArgs)

Event Data

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

Property	Description
Connector	Returns the connector whose beginning/ending item has been changed.
ConnectorPointType	Returns the type of the connection point which has been moved.
NewIndex	Returns the index of the connection point on the diagram item the connector has been attached to.
NewItem	Returns the diagram item the connector has been attached to.
NewPoint	Returns the current coordinates of the connection point which has been moved.
OldIndex	Returns the index of the connection point on the diagram item the connector has been detached from.
OldItem	Returns the diagram item the connector has been detached from.
OldPoint	Returns the initial coordinates of the connection point which has been moved.

Remarks

The ConnectorPointType event’s property returns whether the connection point that is about to be changed is the begin or end point. To get the previous diagram item and its connection point to which the connection point was glued, use the OldItem and OldIndex properties, respectively. The new item and its connection point are returned by the NewItem and NewIndex properties.

The ConnectionChanged event also occurs when a user deletes a connector or performs undo/redo operations to add, delete, or change the connector.

The ConnectionChanged event does not occur when a user adds a new connector.

Refer to the following help topic for more information: Connectors.