Is there a way to populate RadComboBox from both ItemsSource and to set Items as well in the same time from xaml. I have an ItemsSource that gives me a list of names. I want to add to that list a value to 'Select All Names', maybe s.th. like that:
So, if my
Model.Names returns a list with names like: { "Mini", "Miki", "Mouse"} I wat to add to that list a static item from xaml
"Select All Names".