I am looking for some help with making some cells mandatory. I have created
a small expense report with approx. 20 lines. On each line, if a user enters
a expense date, I want to make the €œAttendee€� field mandatory.
I originally thought I could trigger this when printing the form; however,
it is possible the user may just e-mail it.
Besides activating this validation, I am also having problem with the
validation itself.

Any help would be greatly appreciated.