Silverlight 5

WinRT

	public abstract interface IUICommand
	public abstract virtual Object Id { get; set; }
	public abstract virtual UICommandInvokedHandler Invoked { get; set; }
	public abstract virtual String Label { get; set; }

	public abstract interface IUICommandFactory
	public abstract virtual UICommand Create(String label, UICommandInvokedHandler action);
	public abstract virtual UICommand CreateWithId(String label, UICommandInvokedHandler action, Object commandId);

	public sealed class MessageDialog
	: __ComObject, IMessageDialog
	public virtual IList`1<IUICommand> Commands { get; }
	public virtual String Content { get; set; }
	public virtual Int32 DefaultCommandIndex { get; set; }
	public virtual String Title { get; set; }
	public virtual MessageDialogAsyncOperation ShowAsync();

	public sealed class MessageDialogAsyncOperation
	: __ComObject, IAsyncOperation`1<IUICommand>, IAsyncInfo
	public virtual AsyncOperationCompletedHandler`1<IUICommand> Completed { get; set; }
	public virtual Exception ErrorCode { get; }
	public virtual UInt32 Id { get; }
	public virtual AsyncStatus Status { get; }
	public virtual void Cancel();
	public virtual void Close();
	public virtual IUICommand GetResults();
	public virtual void Start();

	public sealed enum Placement
	: IComparable, IFormattable, IConvertible
	{ Above, Below, Left, Right }

	public sealed class PopupMenu
	: __ComObject, IPopupMenu
	public virtual IList`1<IUICommand> Commands { get; }
	public virtual ShowOperation ShowAsync(Point invocationPoint);
	public virtual ShowOperation ShowForSelectionAsync(Rect selection);
	public virtual ShowOperation ShowForSelectionAsync(Rect selection, Placement preferredPlacement);

	public sealed class ShowOperation
	: __ComObject, IAsyncOperation`1<IUICommand>, IAsyncInfo
	public virtual AsyncOperationCompletedHandler`1<IUICommand> Completed { get; set; }
	public virtual Exception ErrorCode { get; }
	public virtual UInt32 Id { get; }
	public virtual AsyncStatus Status { get; }
	public virtual void Cancel();
	public virtual void Close();
	public virtual IUICommand GetResults();
	public virtual void Start();

	public sealed class UICommand
	: __ComObject, IUICommand
	public virtual Object Id { get; set; }
	public virtual UICommandInvokedHandler Invoked { get; set; }
	public virtual String Label { get; set; }

	public sealed class UICommandInvokedHandler
	: MulticastDelegate, ICloneable, ISerializable
	public virtual void Invoke(IUICommand command);

	public sealed class UICommandSeparator
	: __ComObject, IUICommand
	public virtual Object Id { get; set; }
	public virtual UICommandInvokedHandler Invoked { get; set; }
	public virtual String Label { get; set; }