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TextBoxBase.DeclareChangeBlock Method

Creates a change block.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

public IDisposable DeclareChangeBlock()

Return Value

Type: System.IDisposable
An IDisposable object that refers to a new change block.

A change block logically groups multiple changes into a single undo unit. A change block is created by calling the DeclareChangeBlock method. Calling the BeginChange method causes all subsequent changes to be included in the specified change block until a corresponding call to the EndChange method is made.

.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.

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