Whenever you accurate the ItemsSource with the right value XAML won't immediately reilitialize the gathering of things. @Kent factors out that Properties are not necessary to encapsulate fields, they might do a calculation on other fields, or serve other applications. OldCurmudgeonOldCurmudgeon 66k1818 gold badges126126 silver badges220220 bronze badges eight 1 https://retailshopinnoida.blogspot.com/