StructureChangedEventHandler Delegate

Definition

Namespace:

System.Windows.Automation

Assembly:

UIAutomationTypes.dll

Represents the method implemented by the client application to handle the event raised when the UI Automation tree structure has changed.

public delegate void StructureChangedEventHandler(System::Object ^ sender, StructureChangedEventArgs ^ e);

public delegate void StructureChangedEventHandler(object sender, StructureChangedEventArgs e);

type StructureChangedEventHandler = delegate of obj * StructureChangedEventArgs -> unit

Public Delegate Sub StructureChangedEventHandler(sender As Object, e As StructureChangedEventArgs)

Parameters

sender

Object

The object that raised the event.

e

StructureChangedEventArgs

Information about the event.

Remarks

The following table describes the information in the event received by the delegate for different structure changes.

e.structureChangeType	sender	e.runtimeId
ChildAdded	The child that was added.	The child that was added.
ChildRemoved	The parent of the child that was removed.	The child that was removed.
ChildrenBulkAdded	The parent of the children that were added.	The parent of the children that were added.
ChildrenBulkRemoved	The parent of the children that were removed.	The parent of the children that were removed.
ChildrenInvalidated	The parent of the children that were invalidated.	The parent of the children that were invalidated

Extension Methods

See also

• AddStructureChangedEventHandler(AutomationElement, TreeScope, StructureChangedEventHandler)
• RemoveStructureChangedEventHandler(AutomationElement, StructureChangedEventHandler)
• Subscribe to UI Automation Events
• UI Automation Events Overview
• TrackFocus Sample