Cấu hình quan hệ 1 – 0..1 trong Entity Framework code first không cần phải sử dụng API mapping
public class Student { public Student() { } public int StudentId { get; set; } public string StudentName { get; set; } public virtual StudentAddress StudentAddress { get; set; } } public class StudentAddress { [Key, ForeignKey("Student")] public int StudentId { get; set; } public string Address1 { get; set; } public string Address2 { get; set; } public string City { get; set; } public int Zipcode { get; set; } public string State { get; set; } public string Country { get; set; } public virtual Student Student { get; set; } }