• Source
    1. using System;
    2. using System.ComponentModel.DataAnnotations;
    3. using System.ComponentModel.DataAnnotations.Schema;
    4.  
    5. namespace ExampleCodeFirst
    6. {
    7. public class Employee
    8. {
    9. [Key]
    10. public int Id { get; set; }
    11. public string FirstName { get; set; }
    12. public string LastName { get; set; }
    13. public DateTime Birthday { get; set; }
    14. public int DepId { get; set; }
    15.  
    16. [ForeignKey("DepId")]
    17. public virtual Departments Departments { get; set; } // Định nghĩa quan hệ one-to-many
    18.  
    19. }
    20. }