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Supress 2nd Validation Error

1,287 Recognized Expert Top Contributor
I have a text box with a validation rule and validation text. When entering a new record, if I put in invalid text, the validation text is displayed in a message box, but after clicking OK, another message box is displayed with:
-----------
myApplication (i bubble icon)
The value violates the validation rule for the field or record.

For example, you might have changed a validation rule without verifying whether the existing data matches the new validation rule.

Click undo to restore the previous value, or enter a new value that meets the validation rule for the field or records.
[OK] [Help]
-----------
After clicking OK here, if I try to tab out of the text box without changing anything, I get only the validation text message. So this 2nd message only happens the first time an entry is invalid. I've tried using the Form_Error event and DataErr 7753, but I still get this extra message. The table has no restrictions on the text field. Any idea how I can suppress this?

I just noticed that if I press Escape after the closing validation text message box, it saves the record with the invalid data! What am I doing wrong?
Feb 23 '09 #1
18 6239
RuralGuy
375 Recognized Expert Contributor
I personally do not use the validation available in a table but put it *all* in the BeforeUpdate event of the control for the field in the form and the BeforeUpdate event of the DataEntry/Edit form. Just my $0.02. I feel it gives me more control over the messages.
Feb 24 '09 #2
ChipR
1,287 Recognized Expert Top Contributor
Thanks, I'll give that a try. If I put some testing code and message box in the BeforeUpdate even of the control, what do I need to put in the BeforeUpdate event of the form? I hope this isn't a dumb question, I'm just not sure exactly of the sequence of events with the BeforeUpdate.
Feb 24 '09 #3
RuralGuy
375 Recognized Expert Contributor
I use the BeforeUpdate event of the form to check for missing entries.
Feb 24 '09 #4
ChipR
1,287 Recognized Expert Top Contributor
Ah, that would allow you to deal with any fields that can't be null before you get a stupid error message from Acess. I get it :)
Feb 24 '09 #5
ChipR
1,287 Recognized Expert Top Contributor
Ok, I like using the BeforeUpdate very much, but I'm still getting this 2nd error message. Here's the code for my text box.

Expand|Select|Wrap|Line Numbers
  1. Private Sub TimeIn_BeforeUpdate(Cancel As Integer)
  2.     'MsgBox "before time in update"
  3.     If IsNull(TimeIn) Then
  4.         Cancel = True
  5.         Exit Sub
  6.     End If
  7.     'check for valid time
  8.     If TimeIn > 2359 Or TimeIn Mod 100 > 59 Then
  9.         MsgBox "Please enter a 4-digit military time, or press Escape to cancel."
  10.         Cancel = True
  11.         Exit Sub
  12.     End If
  13.     If IsNull([TimeOut]) Then
  14.         Exit Sub
  15.     End If
  16.     'check < TimeOut
  17.     If TimeIn >= TimeOut Then
  18.         MsgBox "The time in must be before the time out."
  19.         Cancel = True
  20.     End If
  21. End Sub
I've removed the validation from the control, and the table never had any. The field is still a text type. Now, if I go to a new record and put in something like 2600, I get my MsgBox, then I still get this other Access message. The BeforeUpdate event of the form isn't called in this case.

The 2nd message is still only on the first error, but it happens in each field in a new record. So if I put something invalid in Time In the first time, I get 2 errors. Now I try to submit it again, I get one error. I fix it and go to the Time Out text box and put in something invalid, I get 2 errors. I try to submit it again, and I only get one error.

Is there any other way I can try to intercept this message?
Feb 24 '09 #6
ChipR
1,287 Recognized Expert Top Contributor
Well I finally found it.

Even though I'm cancelling in the control's BeforeUpdate Event, there is still a Form Error Event being triggered with a DataErr of 2116.

I haven't been able to find an explanation of why, and I'm surprised that others haven't experienced it, but at least I can stop it from bothering my users.
Feb 24 '09 #7
ChipR
1,287 Recognized Expert Top Contributor
Well, suppressing this error message hasn't solved the actual problem. My code above doesn't work, and I can't figure out why. When I enter an invalid value in a control the first time, it is not getting cancelled, it's getting saved. And that's why the form error is called. Can anyone tell me why the cancel isn't working?
Feb 24 '09 #8
RuralGuy
375 Recognized Expert Contributor
Setting Cancel = True in the BeforeUpdate event of a control holds the focus in that control. What version of Access are you using? There is a Service Pack for both ac2003 and ac2007 and HotFixes for both as well.
Feb 24 '09 #9
ChipR
1,287 Recognized Expert Top Contributor
I have 2007 and the latest service pack, but I don't see any hotfixes. I haven't found any that describe fixes for problems like mine though.

The focus is not actually leaving the control, as far as I can tell. I enter invalid data, and try to tab out of the field. I get the BeforeUpdate MsgBox and the Form Error, and the cursor remains in the same control, but the value has been saved. I can see this because if I hit Escape, the invalid value remains in the control, like it is reverting back to the previously saved value. But when the BeforeUpdate event is called, the control has no .OldValue. The .OldValue is still either null or empty when the Form Error occurs.

This is on a continuous form, but that shouldn't matter, should it?
Feb 25 '09 #10

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