I'm working with an employee training application.  I have a "class session"
form with class date, class instructor, class location, etc.  On that form is
a subform showing all employees enrolled in that particular class session.  I
want to click a button on the main form and update the value in the "class
completed" control for all the records on the subform to "true".  What's the
best way to approach this - do I loop through the recordset, use an append
query, or something else altogether?

Thanks.