示例#1
0
        public static void UpdateCourse()
        {
            using (MyContext db = new MyContext())
            {
                List <Course> a = db.Courses.OrderBy(x => x.Title).ToList();
                Course        C = new Course();
                C.PrintCourses(a);
                Console.Write("Please select the ID of the course you want to uddate: ");
                int    id = Convert.ToInt32(Console.ReadLine());
                Course C1 = db.Courses.Find(id);
                Console.WriteLine("Which attribute you want to update?");
                Console.WriteLine("1 - Title\n2 - Stream (j for Java C for C#)\n3 - Type (f for full-time p for part-time)\n4 - Start Date of the Course(yyy/mm/dd)\n5 - End Date of the Course(yyy/mm/dd)");
                int choice = Convert.ToInt32(Console.ReadLine());
                switch (choice)
                {
                case 1:
                    Console.WriteLine("Please enter new title");
                    C1.Title = Console.ReadLine();

                    break;

                case 2:
                    Console.WriteLine("Please enter new Stream (j for Java C for C#)");
                    string stream_input = Console.ReadLine();
                    if (stream_input == "j")
                    {
                        C1.Stream = true;
                    }
                    else
                    {
                        C1.Stream = false;
                    }
                    break;

                case 3:
                    Console.WriteLine("Please enter new Type (f for full-time P for part-time)");
                    string type_input = Console.ReadLine();
                    if (type_input == "f")
                    {
                        C1.Type = true;
                    }
                    else
                    {
                        C1.Type = false;
                    }
                    break;

                case 4:
                    Console.WriteLine("Please enter new Start Date(yyyy/mm/dd)");
                    C1.StartTime = Convert.ToDateTime(Console.ReadLine());
                    break;

                case 5:
                    Console.WriteLine("Please enter new End Date(yyyy/mm/dd)");
                    C1.EndTime = Convert.ToDateTime(Console.ReadLine());
                    break;
                }
                Console.WriteLine("Changes Saved");
                db.SaveChanges();
            }
        }