c# - How to have multiple selection of items on combobox -

hey wanted know how can select multiple items combobox in xaml? note: i'm using data binding.

like image:

you can use checkbox items of combobox.

and when checkbox checked, important modify placeholdertext of combobox, default show selected item, can modify show items checked.

for example here: how make list of checkboxes in alarm & clock app.