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AutomationElement.LayoutInvalidatedEvent Field

Identifies the event that is raised when the layout is invalidated.

Namespace:  System.Windows.Automation
Assembly:  UIAutomationClient (in UIAutomationClient.dll)

public static readonly AutomationEvent LayoutInvalidatedEvent

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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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