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Automation.AddAutomationEventHandler Method

Updated: December 2011

Registers a method that handles UI Automation events.

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

public static void AddAutomationEventHandler(
	AutomationEvent eventId,
	AutomationElement element,
	TreeScope scope,
	AutomationEventHandler eventHandler
)

Parameters

eventId
Type: System.Windows.Automation.AutomationEvent
The identifier for the event the method will handle.
element
Type: System.Windows.Automation.AutomationElement
The UI Automation element to associate with the event handler.
scope
Type: System.Windows.Automation.TreeScope
The scope of events to be handled; that is, whether they are on the element itself, or on its ancestors and descendants.
eventHandler
Type: System.Windows.Automation.AutomationEventHandler
The method to call when the specified event occurs.

Some classes, such as GridPattern, expose fields identifying events that are specific to the class. The AddAutomationEventHandler method provides a mechanism that enables you to register handlers for these events.

eventHandler can be an instance of the method, or a reference to the method (AddressOf in Visual Basic).

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Date

History

Reason

December 2011

Removed incorrect example.

Content bug fix.

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