Maintain Previous Value

[gtd526]

Hello,
Im using the following code for Maintaining Previous Value. It works when I enter the New value Manually, but not when its updated via Vlookup.
How can it be done using a Formula for updating value?
Thank you.

Private Sub Worksheet_Change(ByVal Target As Range)
    Dim I As Long
    Dim xCell As Range
    Dim xDCell As Range
    Dim xHeader As String
    Dim xCommText As String
    
    On Error Resume Next
    Application.ScreenUpdating = False
    Application.EnableEvents = False
    xHeader = "Previous value :"
    x = xDic.Keys
    For I = 0 To UBound(xDic.Keys)
        Set xCell = Range(xDic.Keys(I))
        Set xDCell = Cells(xCell.Row, 14) 'where the change goes(column)
        xDCell.Value = ""
        xDCell.Value = xDic.Items(I)
    Next
    Application.EnableEvents = True
    Application.ScreenUpdating = True
End Sub
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
    Dim I, J As Long
    Dim xRgArea As Range
    
    On Error GoTo Label1
    If Target.Count > 1 Then Exit Sub
    Application.EnableEvents = False
    Set xDependRg = Target.Dependents
    
    If xDependRg Is Nothing Then GoTo Label1
    If Not xDependRg Is Nothing Then
        Set xDependRg = Intersect(xDependRg, Range("L9:L15")) 'where the change happens
    End If
Label1:
    Set xRg = Intersect(Target, Range("L9:L15")) 'where the change happens
    If (Not xRg Is Nothing) And (Not xDependRg Is Nothing) Then
        Set xChangeRg = Union(xRg, xDependRg)
    ElseIf (xRg Is Nothing) And (Not xDependRg Is Nothing) Then
        Set xChangeRg = xDependRg
    ElseIf (Not xRg Is Nothing) And (xDependRg Is Nothing) Then
        Set xChangeRg = xRg
    Else
        Application.EnableEvents = True
        Exit Sub
    End If

    xDic.RemoveAll
 xDic.RemoveAll
    For I = 1 To xChangeRg.Areas.Count
        Set xRgArea = xChangeRg.Areas(I)
        For J = 1 To xRgArea.Count
            xDic.Add xRgArea(J).Address, xRgArea(J).Value   'changed from Formula to Value, Value only works Manually
        Next
    Next
    Set xChangeRg = Nothing
    Set xRg = Nothing
    Set xDependRg = Nothing
    Application.EnableEvents = True
    
End Sub

 

[mumps]

Look in to the Worksheet_Calculate event.

 

[gtd526]

Look in to the Worksheet_Calculate event.

Thanks for the reply. I find written code online and test it. Im not a Code writer. I just want to make changes, if possible. It has Worksheet Calculate events within it, but I don't know what Im looking for. I changed .formula to .value within the code but its not working.

 

[mumps]

It would be easier to help if you could use the XL2BB add-in (icon in the menu) to attach a screenshot (not a picture) of your sheet. Alternately, you could upload a copy of your file to a free site such as www.box.com or www.dropbox.com. Once you do that, mark it for 'Sharing' and you will be given a link to the file that you can post here. Explain in detail what you want to do referring to specific cells, rows, columns and sheets using a few examples from your data (de-sensitized if necessary).