Prompt a user before saving a record

The following example illustrates how to use the BeforeUpdate event to prompt users to confirm their changes each time they save a record in a form.

Private Sub Form_BeforeUpdate(Cancel As Integer) 
   Dim strMsg As String 
   Dim iResponse As Integer 
   ' Specify the message to display. 
   strMsg = "Do you wish to save the changes?" & Chr(10) 
   strMsg = strMsg & "Click Yes to Save or No to Discard changes." 
   ' Display the message box. 
   iResponse = MsgBox(strMsg, vbQuestion + vbYesNo, "Save Record?") 
   ' Check the user's response. 
   If iResponse = vbNo Then 
      ' Undo the change. 
      DoCmd.RunCommand acCmdUndo 
      ' Cancel the update. 
      Cancel = True 
   End If 
End Sub