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