[Video] Chương Trình Quản Lý Sinh Viên C# + Import/Export JSON + File

Chương trình quản lý sinh viên C# + Import/Export JSON + File - Lập Trình C# - Lập Trình C Sharp

#ClassRoom.csusing System; using System.Collections.Generic; namespace Student { [Serializable] public class ClassRoom { public string Name { get; set; } public string Address { get; set; } public List<Student> StudentList { get; set; } public ClassRoom() { StudentList = new List<Student>(); } public void Input() { Console.WriteLine("Nhap ten lop: "); Name = Console.ReadLine(); Console.WriteLine("Nhap dia chi: "); Address = Console.ReadLine(); Console.WriteLine("Nhap so sinh vien: "); int N = int.Parse(Console.ReadLine()); for (int i = 0; i < N; i++) { Student std = new Student(); std.Input(); StudentList.Add(std); } } public void Display() { Console.WriteLine("Ten lop: {0}, dia chi: {1}", Name, Address); foreach(Student std in StudentList) { std.Display(); } } } } #Program.csusing System; using System.Collections.Generic; using System.IO; namespace Student { class Program { static void Main(string[] args) { List<ClassRoom> classRooms = new List<ClassRoom>(); int choose; do { ShowMenu(); choose = int.Parse(Console.ReadLine()); switch(choose) { case 1: classRooms = ImportJSON(); break; case 2: Display(classRooms); break; case 3: SaveFiles(classRooms); break; case 4: Console.WriteLine("Thoat chuong trinh"); break; default: Console.WriteLine("Nhap sai!!!"); break; } } while (choose != 4); } static void SaveFiles(List<ClassRoom> classRooms) { foreach(ClassRoom classroom in classRooms) { //luu tung object classroom vao file Name.obj using (Stream stream = File.Open(classroom.Name+".obj", FileMode.Create)) { var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); binaryFormatter.Serialize(stream, classroom); } } //read file => object /**using (Stream stream = File.Open(filePath, FileMode.Open)) { var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); return (T)binaryFormatter.Deserialize(stream); }*/ } static List<ClassRoom> ImportJSON() { //B1. Doc noi dung data.json var content = System.IO.File.ReadAllText(@"data.json"); //Console.WriteLine(content); //B2. Convert JSON thanh Array Class Object trong C# List<ClassRoom> classRooms = Newtonsoft.Json.JsonConvert.DeserializeObject<List<ClassRoom>>(content); Console.WriteLine("Length: " + classRooms.Count); Display(classRooms); return classRooms; } static void Display(List<ClassRoom> classRooms) { foreach(ClassRoom classroom in classRooms) { classroom.Display(); } } static void ShowMenu() { Console.WriteLine("1. Nhap du lieu tu file data.json"); Console.WriteLine("2. Hien thi thong tin lop hoc"); Console.WriteLine("3. Luu"); Console.WriteLine("4. Thoat"); Console.WriteLine("Choose: "); } } } #Student.csusing System; namespace Student { [Serializable] public class Student { public string Fullname { get; set; } public string Birthday { get; set; } public string Email { get; set; } public string Gender { get; set; } public string Address { get; set; } public Student() { } public void Input() { Console.WriteLine("Nhap ten: "); Fullname = Console.ReadLine(); Console.WriteLine("Nhap ngay sinh(dd-mm-yyyy): "); Birthday = Console.ReadLine(); Console.WriteLine("Nhap email: "); Email = Console.ReadLine(); Console.WriteLine("Nhap gioi tinh: "); Gender = Console.ReadLine(); Console.WriteLine("Nhap dia chi: "); Address = Console.ReadLine(); } public void Display() { Console.WriteLine("Ten: {0}, Ngay sinh: {1}, Gioi tinh: {2}, Email: {3}," + "Dia chi: {4}", Fullname, Birthday, Gender, Email, Address); } } } #data.json[ { "name": "T1801A", "address": "Detech Building", "studentList": [ { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" }, { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" }, { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" } ] }, { "name": "T1804M", "address": "Detech Building", "studentList": [ { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" }, { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" }, { "fullname": "Tran Van A", "birthday": "01-01-19991", "email": "[email protected]", "address": "Nam Dinh", "gender": "Nam" } ] } ]