DiagramControl.BeforeItemsRotating Event

Raises each time the end-user attempts to rotate a diagram item.

Namespace: DevExpress.XtraDiagram

Assembly: DevExpress.XtraDiagram.v23.2.dll

NuGet Package: DevExpress.Win.Diagram

Declaration

C#

[DiagramCategory(DiagramCategory.DiagramItems)]
public event EventHandler<DiagramBeforeItemsRotatingEventArgs> BeforeItemsRotating

VB.NET

<DiagramCategory(DiagramCategory.DiagramItems)>
Public Event BeforeItemsRotating As EventHandler(Of DiagramBeforeItemsRotatingEventArgs)

Event Data

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

Property	Description
ActionSource	Indicates whether the rotating operation is performed using the rotation handle or the Properties Panel.
Cancel	Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
CenterOfRotation	Returns the coordinates of the center of rotation.
Items	Returns the collection of diagram items that are being rotated.

Remarks

The ActionSource property indicates whether the rotating operation is performed using mouse or pressing key shortcuts. The CenterOfRotation property returns the rotation center point.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the BeforeItemsRotating event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

winforms-diagram-create-rotatable-containers-with-shapes/CS/WindowsFormsApp4/Form1.cs#L22

diagramControl1.BeforeItemsRotating += DiagramControl1_BeforeItemsRotating;
diagramControl1.ItemsRotating += DiagramControl1_ItemsRotating;

VB.NET

winforms-diagram-create-rotatable-containers-with-shapes/VB/WindowsFormsApp4/Form1.vb#L26

DiagramControl.ItemTypeRegistrator.Register(GetType(CustomDiagramContainer))
AddHandler diagramControl1.BeforeItemsRotating, AddressOf DiagramControl1_BeforeItemsRotating
AddHandler diagramControl1.ItemsRotating, AddressOf DiagramControl1_ItemsRotating