DropDownButton public class DropDownButton : ItemsControl Documentation Code public static readonly RoutedEvent ClickEvent public static readonly DependencyProperty CommandParameterProperty public static readonly DependencyProperty CommandProperty public static readonly DependencyProperty CommandTargetProperty public static readonly DependencyProperty ContentProperty public static readonly DependencyProperty ExtraTagProperty public static readonly DependencyProperty IconProperty public static readonly DependencyProperty IsExpandedProperty public static readonly DependencyProperty OrientationProperty public ICommand Command { get; set; } public object CommandParameter { get; set; } public IInputElement CommandTarget { get; set; } public object Content { get; set; } public object ExtraTag { get; set; } public object Icon { get; set; } public bool IsExpanded { get; set; } public Orientation Orientation { get; set; } public event RoutedEventHandler Click public DropDownButton()