We work with schoolchildren in Florida, US. Schooling here is grouped into Elementary (grades 1 thru 5), Middle (grades 6 thru 8) and High School (grades 9 thru 12). I have a webform that asks the grade and the school, where school is a dropdown with too many choices. Is there a way to limit the choices in the school dropdown to those that offer the grade entered?
School facilities in our CiviCRM are Organization contacts with tag(s) indicating the grade grouping(s) each serves. Most school facilities serve only one grouping, but some serve all groupings (Elementary, Middle and High).