Cannot migrate AspNetUser entity in Entity Framework Code First Approach in .NET - asp.net

Question

I am developing an ASP.NET MVC project using Visual Studio 2013. I am using Entity Framework Code First Approach to interact with database. But I am having a problem with migrating data because of built-in identity system in ASP.NET. Everything was fine before I touch to identity system.
These are the steps I have done.
I registered an account from UI using built-in identity system. So AspNetUsers table is created in database.
I created AspNetUser class to my code because I need to work with it.
Then I run migration and update database command. It throws error.
This is my AspNetUser class
public class AspNetUser
{
[Required]
public String Id { get; set; }
[Required]
public String UserName { get; set; }
public String PasswordHash { get; set; }
public String SecurityStamp { get; set; }
[Required]
public String Discriminator { get; set; }
}
This is my db context class
public class AyarDbContext : DbContext
{
public AyarDbContext()
: base("DefaultConnection")
{
}
public DbSet<Category> Categories { get; set; }
public DbSet<Region> Regions { get; set; }
public DbSet<Area> Areas { get; set; }
public DbSet<Item> Items { get; set; }
public DbSet<ItemContactInfo> ItemContacts { get; set; }
public DbSet<Gallery> Galleries { get; set; }
public DbSet<Mail> Mails { get; set; }
public DbSet<AspNetUser> AspNetUsers { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
}
}
This is the error I got.
There is already an object named 'AspNetUsers' in the database.
How can I migrate AspNetUser class? I registered using UI because I auto create the other tables need for identity system. How can I migrate that class and map with AspNetUsers table that is already existing in database.

Answer 1

As the error explains, that table already exists and is accessible in this way:
var user = context.Users.First(u => u.Id == myId);
If you want to extend the user class and add properties, you can inherit it:
public class MyAppUser : IdentityUser
{
// don't include properties already in IdentityUser
public string MyNewProperty { get; set; }
}
http://johnatten.com/2014/06/22/asp-net-identity-2-0-customizing-users-and-roles/