I have a specific question - but also a general point to! ;-)
Specific: I have a set of related dataObjects - Song, Theme and SubTheme. Each song can have MANY sub themes and each THEME can have many SubThemes. (i.e. Song related to SubTheme (MM), SubTheme related to Theme (MO) by association song is related to a theme via SubTheme.Theme.fieldName) All very lovely. I am currently building a search form allowing users to search for a song by Title (Text field) Author (Text field), Lyrics (Text field). Also lovely and working fine. I've added two drop down sto allow searching by theme and subtheme and am populating them from the DataObjects. What I really want to do is this:
1. User is presented with form with the text boxes and drop down for THEME.
2. If user selects a THEME (i.e. changes the drop down box) I want to then show the second drop down containing ONLY the related subthemes.