This works. Thank you. However, I don't know how to count a special case.
myField01 is a radio button that must be checked. In this case, count(myField01[.='']) works.
However, if myField01 is "Yes", then myField02 cannot be blank.
In structured code I would write: IF ((myField01=='') OR (myField01=='Yes' AND myField02='')) then cntr = cntr + 1
Can you please tell my how to do this using count?
Thank you for your help.