C# (CSharp) BookBL.BookDelete примеры использования

Пример #1

        public string M_DeleteBook(string id)
        {
            var message = string.Empty;

            if (id == null)
            {
                message = "NOK";
            }
            else
            {
                bm.BookID = id;
                bbl.BookDelete(bm);
                message = "OK";
            }
            return(JsonConvert.SerializeObject(message));
        }