Tự học Excel part 23 pps

Sử dụng Data Validation để bảo vệ những ô chứa công thức      Tự động bật tắt chức năng bảo vệ       Alt+F11  Private Sub Worksheet_SelectionChange(ByVal Target As Range) If Target.Locked = True Then Me.Protect Password:="Secret" Else .      Tự động bật tắt chức năng bảo vệ   