One Dropdownlist Filling Another And Displaying Results?

Feb 23, 2010

I have 3 tables:

SUPPLIER
Id (PK)
Name
City (FK)
State (FK)

CITY
Id (PK)
Name
State (FK)

STATE
Shortname (PK)
Name

1) I'd like to fill 1 dropdownlist with the STATE.Name and the other dropdownlist with the CITY.Name based on the STATE chosen, show up the cities, and after the city is chosen, the SUPPLIERS are shown.

2) Is it ok to make a foreign key field for State inside the City table ?

3) Is it better to create new fields STATE and CITY inside SUPPLIER ?

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