EXT remote-loading forms with Combo boxes
Something that's harder than it should be is populating an EXT edit form with form data, where one of the form fields is a select box. If there is a specific set of values that this select can take, then you can hard code that using a SimpleStore, like this:
So that will populate the select box with the static values you've defined (the 5 states above), then when the form loads it will select the appropriate option automatically.