Question : In MS Access, why are multiple rows of a continuos form affected when a change is made to a single row?

For simplicity, I have a continuous subform which has a Status combo field (with a Before Update event) and a checkbox not tied into any database field.  When the user changes the Status field, the VB code does validation and one of the things it does is look to see if the checkbox is true or false.  The thing that’s not working is that when multiple items are listed on the subform, whenever I check the checkbox on any row, all rows get their checkbox set (or cleared if I clear it).  Why is this action taking place and what can be done to correct it?

Thank you!!

Answer : In MS Access, why are multiple rows of a continuos form affected when a change is made to a single row?

<Why is this action taking place>
that is a normal behaviour of an unbound control in a continuous form

<what can be done to correct it?>
create a Yes/No field in the table and bind that control to that field