Re: Hiding combo box items
You can empty the combobox and then refill it with only those items required (or just remove/add the last 11 items via the Items property), when your "system" changes. Or you could use two different combo boxes, showing only one at a time (in the same location). If you use binding, you could also create two item collections, and rebind as necessary.
It would help if you showed some code. And provided additional information.
Is this Windows Forms? WPF? What?
Re: Hiding combo box items
Thanks for the options. I'm using WPF to define the combo box.