A combobox is a combination of textbox and listbox. The textbox value can be constructed via manual text entry as normal, or via selection from the listbox options, or a combination of both.

TIP : A combobox can be further enhanced with autocomplete behaviour .

Default Combobox

Selecting an option should simply fill the textbox with that value. Options may not have state or any other kind of secondary behaviour.

Disabled Combobox

Apply the disabled property to disable the combobox.