wpf-devexpress-dot-xpf-dot-diagram-dot-diagramcontrol-2c214088.md
Raises each time the end-user attempts to rotate a diagram item.
Namespace : DevExpress.Xpf.Diagram
Assembly : DevExpress.Xpf.Diagram.v25.2.dll
NuGet Package : DevExpress.Wpf.Diagram
public event EventHandler<DiagramBeforeItemsRotatingEventArgs> BeforeItemsRotating
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 whether the event should be canceled. Inherited from CancelRoutedEventArgs. |
| CenterOfRotation | Returns the coordinates of the center of rotation. |
| 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. |
| Items | A collection of items that are being rotated. |
| 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. |
The ActionSource property indicates whether the rotating operation is performed using mouse or pressing key shortcuts. The CenterOfRotation property returns the rotation center point.
See Also