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Editorial Team
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Asked: 2026-05-19T22:28:54+00:00

I have a subform containing records with a Yes/No field displayed as a checkbox

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I have a subform containing records with a Yes/No field displayed as a checkbox on the subform. When the main form is loaded, I need to lock all checked fields so that the user cannot undo what a previous user did: they should only be able to check/uncheck the boxes that were unchecked at the start of thier session.

Is it possible to iterate through all the records in a subform and lock the records selectively based on the field value when a form is loaded?

I know I can put something like 

If (Me.chkItemReceived.Value = -1) Then
        Me.chkItemReceived.Locked = True
Else
        Me.chkItemReceived.Locked = False
End If

in the subform OnCurrent event but this prevents the user from unchecking a box they may have checked accidently. I can iterate through the records on the subform but can’t figure out how to lock the records at row-level.

My other solution is to split the form into two subforms of course – items checked vs. items not but would rather keep it to the one form.

Thanks for your help!

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1 Answer

  1. Editorial Team

    No, there is no way to have specific rows (or records) locked in the GUI in MS Access. If you change the properties of a control on one record, it changes it on all records in the subform.

    I don’t think you could even get away with doing row-level locking directly on the underlying table. Typically, locking is done to prevent others from editing your records. But in this case, you are trying to prevent yourself from editing them.

    The two methods you describe (OnCurrent and separate SubForms) are probably your best options. For cleanliness of the code, I’d choose the latter.

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