Requre field based on combobox value selected

[Access 2010] Require field entry if certain combobox value selected

While googling I found an entry from this forum very similar to my question. However the answer did not exactly work. I have a combobox that has just two choices "open" or "closed", if closed is chosen I want to require a text box (date) to be entered.

The suggested code I used is:

Private Sub opcl_BeforeUpdate(Cancel As Integer)
If opcl = "closed" Then
MsgBox "Please enter date closed", vbOKOnly
compdate.SetFocus
Cancel = True
End If
End Sub

However, this produces the following error message:

Run-Time error 2108
You must save the field before you execute the GoToControl action, the GoTo mtehod, or the SetFocus method.

Thanks in advance!

PS newbie to prgramming in access

For Starters you have the code placed in the "BeforeUpdate" Event, which means it will try to run the code after something is entered/selected, but before it is completely entered. You need to place the code in the "AfterUpdate" event.

Also, that code doesn't force anyone to enter the date, it just gives you a message box asking the person to enter it, then they have to click Ok, then it sets the focus to the textbox where the date needs to be entered.

If you have buttons on your form to save the entry, you can put a proceedure for the button click that checks the combobox value (kind of like what you have now). If the value is closed Then it will check to see if your textbox for the date has a valid date in it...

This checks the value in your date textbox, and it compairs it to the date from 1 week ago, if it is within a week, if not it will give a message box

Code:

---

    If opcl = "closed" Then
        If compdate < dateadd("d",-7,date) then
            MsgBox "Please enter a valid date for when the item was closed", vbOKOnly
            compdate.SetFocus
        ElseIf compdate > dateadd("d",-7,date) then
            'your code for saving the record
        End If
    Else:
            'your code for saving the record
    End If

---

THank No One...

No buttons on the form for saving just using the built in access save button. There would only be one date, the date the item was closed.

What do you mean by the built in save button? How do you move to the next record, do you have any buttons on your form for navigating through records?

In the main menu at the top Home tab > Records > Save

As for navigating to the next record, again, the built-in navigation at the bottom of each form.

Thanks,