- First, let's write two sample classes
public class Person
{
public int Id { get; set; }
public string FirstName { get; set; } = null!;
public string LastName { get; set;} = null!;
public Contact PersonalInformation { get; set; } = null!;
}
using Microsoft.EntityFrameworkCore;
[Owned]
public class Contact
{
public string PhoneNumber { get; set; } = null!;
public string EmailAddress { get; set; } = null!;
}
- Let's create the Person Table with the help of DbContext class and Entity Framework Core.
public sealed class ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : DbContext(options)
{
public DbSet<Person> People => Set<Person>();
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<Person>(p =>
{
p.HasData(
new Person
{
Id = 1,
FirstName = "Person 1",
LastName = "Surname 1"
},
new Person
{
Id = 2,
FirstName = "Person 2",
LastName = "Surname 2"
},
new Person
{
Id = 3,
FirstName = "Person 3",
LastName = "Surname 3"
});
p.OwnsOne(e => e.PersonalInformation).HasData(new
{
PersonId = 1,
EmailAddress = "EmailAddress 1",
PhoneNumber = "1111111111111111"
},
new
{
PersonId = 2,
EmailAddress = "EmailAddress 2",
PhoneNumber = "22222222222222"
},
new
{
PersonId = 3,
EmailAddress = "EmailAddress 3",
PhoneNumber = "3333333333333333"
});
});
}
}
- Now it's time to create the database with the entity framework migration command and then update the database.
Add-Migration Initial
Update-Database
that is all . enjoy your work 😊
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