Re: validate and popular fields in demo, what are they and usesIn reply to
I think Alex put those in there to demonstrate the use of checkbox fields and radio buttons. No, they're not needed, unless the database you're setting up needs to use them.
Re: validate and popular fields in demo, what are they and usesIn reply to
That's right, the fields there are all just examples and don't mean anything in relation to the program. You can put any fields you like into the program.