Lock a field on specific records in a subform

[WyvsEyeView]

I have a dataset subform on which I want to lock a field for just two specific records. Each record has a type_id and a desc field. I want to test the value of the type_id field for the current record and if it is "PROD" or "LIBR" I want to lock the field. (I can allow editing of the desc field.) type_id field for all other records should remain unlocked. Here is my code:

Private Sub type_id_Enter()
  If Me.type_id.Value = "PROD" Then
    Me.type_id.Locked = True
    MsgBox "You cannot edit this type.", vbOKOnly
  Else
    Me.type_id.Locked = False
  End If
  If Me.type_id.Value = "LIBR" Then
    Me.type_id.Locked = True
    MsgBox "You cannot edit this type.", vbOKOnly
  Else
    Me.type_id.Locked = False
  End If
End Sub

The message box is displaying correctly but I can still edit the PROD or LIBR records after dismissing the box. I have also tried this code with the OnCurrent and BeforeUpdate events, with even less success. Thanks for any advice.

[missinglinq]

I only had the problem when the id_Type was PROD, which is even curioser. I modified the code slightly, placing parts in Form_Current and part in the id_Type.Enter event, and it works fine. I would add a line, at the very beggining, in the Form_Current event, setting the initial focus to another control. It will be very irritating to users, and possibly confusing, to have the message pop up when they move to the record and before they'd done anything. This way it will only chastise them if they deliberately move into the field that has PROD or LIBR in it. It will also help to educate them.

Private Sub Form_Current()
If Me.type_id.Value = "PROD" Or Me.type_id.Value = "LIBR" Then
 Me.type_id.Locked = True
Else
 Me.type_id.Locked = False
End If
End Sub

Private Sub type_id_Enter()
If Me.type_id.Value = "PROD" Or Me.type_id.Value = "LIBR" Then
 MsgBox "You cannot edit this type.", vbOKOnly
End If
End Sub

Welcome to Bytes!

Linq ;0)>