windowsforms-devexpress-dot-xtradiagram-dot-diagramcontrol-48be4499.md
Raises each time the end-user attempts to rotate a diagram item.
Namespace : DevExpress.XtraDiagram
Assembly : DevExpress.XtraDiagram.v25.2.dll
NuGet Package : DevExpress.Win.Diagram
[DiagramCategory(DiagramCategory.DiagramItems)]
public event EventHandler<DiagramBeforeItemsRotatingEventArgs> BeforeItemsRotating
<DiagramCategory(DiagramCategory.DiagramItems)>
Public Event BeforeItemsRotating As EventHandler(Of DiagramBeforeItemsRotatingEventArgs)
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. |
The ActionSource property indicates whether the rotating operation is performed using mouse or pressing key shortcuts. The CenterOfRotation property returns the rotation center point.
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.
winforms-diagram-create-rotatable-containers-with-shapes/CS/WindowsFormsApp4/Form1.cs#L22
diagramControl1.BeforeItemsRotating += DiagramControl1_BeforeItemsRotating;
diagramControl1.ItemsRotating += DiagramControl1_ItemsRotating;
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
See Also