Question

I’m developing an Access 2003 Database that uses a MS SQLServer backend.

I’m trying to do Form Validation and am experiencing some problems.

1. ValidationRule for each field seems to be ignored
2. I can’t figure out what event I should override to enforce validation without having the database do it. (I’m not against this, it’s just unknown to me how I’d catch Error Messages, instead of displaying them to the user)

I’ve tried getting around number 2 by disallowing closing and enforcing the use of a ‘Close Button’, but the user can side step it by pressing tab, or by pressing the ‘Next Record’ button at the bottom.

Any suggestions would be greatly appreciated.

Answer 1

If you are using the validation rules property, you can catch validation and duplicate key errors, amongst other things, in the Form Error event:

Private Sub Form_Error(DataErr As Integer, Response As Integer)    If DataErr=2107 Then       MsgBox 'Validation error! '  & ActiveControl.Name    End If End Sub 

You can enforce the use of your close button with a variable defined at form level and set to false unless your button is clicked.

Option Compare Database Option Explicit  Public AllowClose As Boolean  Private Sub Form_Load()     AllowClose = False End Sub  Private Sub Form_Unload(Cancel As Integer)     Cancel = Not AllowClose End Sub Private Sub cmdClose_Click() On Error GoTo Err_cmdClose_Click      AllowClose = True     DoCmd.Close  Exit_cmdClose_Click:     Exit Sub  Err_cmdClose_Click:     MsgBox Err.Description     Resume Exit_cmdClose_Click  End Sub 

From: http://www.tek-tips.com/faqs.cfm?fid=2071