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