بعد اذن استاذنا سليم , ولإثراء الموضوع يمكنك وضع هذه الأكواد فى حدث الصفحة
Dim mRg As Range
Dim mStr As String
Private Sub Worksheet_BeforeDoubleClick(ByVal Target As Range, Cancel As Boolean)
If Not Intersect(Range("A2:D1000"), Target) Is Nothing Then
Set mRg = Target.Item(1)
mStr = mRg.Value
End If
End Sub
Private Sub Worksheet_Change(ByVal Target As Range)
Dim xRg As Range
On Error Resume Next
Set xRg = Intersect(Range("A2:D1000"), Target)
If xRg Is Nothing Then Exit Sub
Target.Worksheet.Unprotect Password:="123"
If xRg.Value <> mStr Then xRg.Locked = True
Target.Worksheet.Protect Password:="123"
End Sub
Private Sub Worksheet_SelectionChange(ByVal Target As Range)
If Not Intersect(Range("A2:D1000"), Target) Is Nothing Then
Set mRg = Target.Item(1)
mStr = mRg.Value
End If
End Sub