This demo pulls from a live database and options change based upon user responses.
You will note that changing the value in one field changes the options avaialble in the succeding fields. So changing the Make from "Ford" to "Chevy" automatically changes the choices for the Model
You can type any part of the word(s) you are looking for in the dropdown box fields and ListForms knows what you mean. For example typing "o" in the "Make" field will find ALL makes with an "o" ( for the selected year) , but "fo" will find "Ford"