Force selection of drop down
Is there a way to force user to make a selection from a drop down before allowing them to move on to the next field? Like it lights up red if selection not made? I know in TurboTax, it won't let me do anything if I don't make a choice. I want the field box to turn red and then an asterisk to come up telling user to make a selection.
I know how to do this by adding an app alert if the field is null but wanted to introduce a visual affect as well.
Thx.
Sue
