In this exercise, we will learn how to create a combo box. A Combo Box is a window control that allows you to select an item from a list. Depending on how the control functions, sometimes you are allowed to type a value in the list and sometimes you can only select one.
Some references call it a drop down box.
Click Finish . Now we need to initialize our combo box to fill it up with items the user will choose from. If you run your application now, it should compile fine, but the combo box appears empty and would display its items only if you drop it down. Let's modify that behavior.