TextChangedEvent Field
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TextPattern.TextChangedEvent Field

Identifies the event raised whenever textual content is modified.

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

public static readonly AutomationEvent TextChangedEvent

This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in TextPatternIdentifiers.

// Initialize a text changed listener. 
// An instance of TextPatternRange will become invalid if  
// one of the following occurs: 
// 1) The text in the provider changes via some user activity. 
// 2) ValuePattern.SetValue is used to programatically change  
// the value of the text in the provider. 
// The only way the client application can detect if the text  
// has changed (to ensure that the ranges are still valid),  
// is by setting a listener for the TextChanged event of  
// the TextPattern. If this event is raised, the client needs  
// to update the targetDocumentRange member data to ensure the  
// user is working with the updated text.  
// Clients must always anticipate the possibility that the text  
// can change underneath them.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0
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