My Situation:
I have a SharePoint list with a couple of fields used to make a printer directory.
A the moment i have the Yes/No field "Network printer" to determine if i have to collect additional data like IP address and sub net. So far i just have this field marked as not mandatory and change the input form in InfoPath so that hides them as soon as someone chooses "No" in the network printer choice, so the end user knows that he does not have to fill this information in.
My Problem:
I'd like that when the user chooses "Yes" that he can not add the item to the list until this technically mandatory fields are filled out.