Zack Pallantor wrote: 1. JComboBox isn't limiting the number of items presented.
What do you mean? If there is a thousand items and your height is 5, the box shows 1000 items, or is truncated to 5?
Zack Pallantor wrote: , 2. the JComboBox disappears when I attempt to scroll, .
Only event handlers can cause this. You may have codes that intentionally does that.
Zack Pallantor wrote: 3. There is no vertical scrollbar. .
You may want to start small and simple. E.g. start without a model. When it works without a model, add the model design.