'宣言 Public Function DisplayActivityRecurrenceDialog( _ ByVal container As FrameworkElement, _ ByVal activity As ActivityBase, _ ByVal header As Object, _ ByVal closingCallback As Func(Of Boolean), _ ByVal closedCallback As Action(Of Nullable(Of Boolean)) _ ) As Boolean
public bool DisplayActivityRecurrenceDialog( FrameworkElement container, ActivityBase activity, object header, Func<bool> closingCallback, Action<Nullable<bool>> closedCallback )