Identifies the event that is raised when the layout is invalidated.
Assembly: UIAutomationClient (in UIAutomationClient.dll)
This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent identifier in AutomationElementIdentifiers.
This event is raised by a container of elements whenever the visibility information of many elements has changed. This event is used by the client as an indicator that it needs to refresh the BoundingRectangleProperty and IsOffscreenProperty information that it may have cached for elements within the tree. The recommended number of changes that triggers this event is 25.