C# (CSharp) IMessageBoxService.ShowQuestionWithCancel примеры использования

Пример #1

        public static bool?ShowQuestionWithCancel(this IMessageBoxService service, string message, string title = "Question")
        {
            if (service == null)
            {
                throw new ArgumentNullException(nameof(service));
            }

            return(service.ShowQuestionWithCancel(null, message, title));
        }