automatic static date and time when a value was copied from another worksheet and pasted to a sheet with macro - excel

Question

I am working on a worksheet that will enter static date and time in an excel worksheet when a value is typed in a target cell. However, the worksheet will be used where values are copied from a downloaded file and pasted to the macro worksheet. When values are typed, the date and time worked as expected but if values are pasted, the VBA code does not work, it has to be typed. How can I make that possible?
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count > 1 Then Exit Sub
If Not Intersect(Target, Range("C2:C100")) Is Nothing Then
With Target(1, -1)
.Value = Date
.EntireColumn.AutoFit
End With
End If
End Sub

Answer 1

Something like this:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rng As Range, c As Range
'any updates to C2:C100 ?
Set rng = Application.Intersect(Target, Me.Range("C2:C100"))
If Not rng Is Nothing Then
'loop over all updated cells
For Each c In rng.Cells
c.Offset(0, -2).Value = Date
Next c
rng.Offset(0, -2).EntireColumn.AutoFit
End If
End Sub

Answer 2

Add Date Stamp on Cell Change
Pick one.
Easy
Private Sub Worksheet_Change(ByVal Target As Range)
Const cFirst As String = "C2"
Const dCol As String = "A"
Dim rg As Range
Set rg = Range(cFirst).Resize(Rows.Count - Range(cFirst).Row + 1)
Set rg = Intersect(Target, rg)
If Not rg Is Nothing Then
' Since you cannot manually paste a non-contiguous range
' (you can copy one), you can get away with the following line:
rg.EntireRow.Columns(dCol).Value = Date
rg.EntireColumn.AutoFit
End If
End Sub
Hard
Private Sub Worksheet_Change(ByVal Target As Range)
Const cFirst As String = "C2"
Const dCol As String = "A"
' Create a reference to the column range from 'cFirst'
' to the bottom-most cell in the worksheet.
Dim rg As Range: Set rg = Intersect(Target, _
Range(cFirst).Resize(Rows.Count - Range(cFirst).Row + 1))
If rg Is Nothing Then Exit Sub
' If you plan to populate the cells via VBA, then you could write
' non-contiguously to the column range,
' e.g. with 'Range("C3,C5:C7,C10:20").value = 1'.
' Then you could use the following:
Dim dDate As Date: dDate = Date
Dim arg As Range
For Each arg In rg.Areas
arg.EntireRow.Columns(dCol).Value = dDate
Next arg
rg.EntireColumn.AutoFit
End Sub
Tough
Private Sub Worksheet_Change(ByVal Target As Range)
addDateStamp Target, "C2", "A"
End Sub
' This is usually, but not necessarily, located in a standard module.
Sub addDateStamp( _
ByVal TargetRange As Range, _
ByVal FirstCellAddress As String, _
ByVal DateStampColumn As String)
If Not TargetRange Is Nothing Then
Dim rg As Range
With TargetRange.Worksheet.Range(FirstCellAddress)
Set rg = .Resize(.Worksheet.Rows.Count - .Row + 1)
End With
Set rg = Intersect(TargetRange, rg)
If Not rg Is Nothing Then
Dim dDate As Date: dDate = Date
Dim arg As Range
For Each arg In rg.Areas
arg.EntireRow.Columns(DateStampColumn).Value = dDate
Next arg
rg.EntireColumn.AutoFit
End If
End If
End Sub