Using multiple drop down lists

[DanNatCorning]

I want to create a drop-down list with 4 items, which represent categories; then, based on which of the four categories the user chooses, I want to create a "sub-category" drop-down list, from which th euser can select 1 or more items.  Then, I'd like to display a comma-delimited list (in a textbox) of all the items in the subcategory that were selected.  I have looked all over, and I've messed with drop downs and list boxes. I'm just not sure where to start.  I'm assuming this is a rediculously easy task for most of you, but I'm stumped.

[smercurio_fc]

The easiest way to do this is with event structures. You just need to respond to the menu's "Value Change" event and then update the list on the submenu. See attached example (LabVIEW 8.2) that should get you started.