static NavigationViewItem()
{
SelectableMixin.Attach <NavigationViewItem>(IsSelectedProperty);
FocusableProperty.OverrideDefaultValue <NavigationViewItem>(true);
ClickModeProperty.OverrideDefaultValue <NavigationViewItem>(ClickMode.Release);
}
static CardControl()
{
CommandProperty.Changed.Subscribe(CommandChanged);
CommandParameterProperty.Changed.Subscribe(CommandParameterChanged);
ClickModeProperty.OverrideDefaultValue <CardControl>(ClickMode.Release);
}