AddPropertyChange<TOwner,TProperty>(TOwner,Expression<Func<TProperty>>,TProperty,TProperty,Nullable<Boolean>,String,String) Method

Adds an PropertyChangeUndoUnitBase for the specified property value change to the undo history.

Syntax

Visual Basic

'Declaration
 
Public Overloads Function AddPropertyChange
    (Of TOwner As Class,
     TProperty)( _
   ByVal owner As TOwner, _
   ByVal getter As Expression(Of Func(Of TProperty)), _
   ByVal oldValue As TProperty, _
   ByVal newValue As TProperty, _
   Optional ByVal preventMerge As Nullable(Of Boolean), _
   Optional ByVal propertyDisplayName As String, _
   Optional ByVal typeDisplayName As String _
) As UndoUnit

C#

public UndoUnit AddPropertyChange<TOwner,TProperty>( 
   TOwner owner,
   Expression<Func<TProperty>> getter,
   TProperty oldValue,
   TProperty newValue,
   Nullable<bool> preventMerge,
   string propertyDisplayName,
   string typeDisplayName
)
where TOwner: class

Parameters

owner

The instance whose property was changed

getter

An expression for the property of the TOwner that was changed

oldValue

The old value of the property that should be restored when the action is undone.

newValue

The new value of the property

preventMerge

Used to determine if the property change should be prevented from being merged with the top entry on the undo stack when merging is allowed.

propertyDisplayName

The name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used.

typeDisplayName

The name of the object whose property is being changed as it should be displayed to the end user.

Type Parameters

TOwner

The type of class whose value was changed

TProperty

The type of the property that was changed

Return Value

Returns the UndoUnit that was added or null if one was not added

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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