Many to Many relationship in Asp.Net MVC 5 with Identity table and Custom table

Question

I\'m trying to make a relationship between the Users from the table generated by Asp.Net Identity with my own table. The relationship must be many to many, since many Users

Answer 1

Try it like this:

1. public class Projects
   {
       public Projects()
       {
           ApplicationUser = new HashSet();
       }
       public int Id { get; set; }
       public string Name { get; set; }
       public virtual ICollection ApplicationUser { get; set;     }
   }
   

2. Application User

    public class ApplicationUser : IdentityUser
    {
        public ApplicationUser()
        {
            Projects = new HashSet();
        }
        public async Task GenerateUserIdentityAsync(UserManager manager)
        {
            // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
            var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
            // Add custom user claims here
            return userIdentity;
        }        
        public virtual ICollection  Projects { get; set; }
    }

3. Application Context :

    public class ApplicationDbContext : IdentityDbContext
    {
        public ApplicationDbContext()
            : base("DefaultConnection", throwIfV1Schema: false)
        {
        }
        public virtual DbSet Projects { get; set; }

        public static ApplicationDbContext Create()
        {
            return new ApplicationDbContext();
        }
    }

now when I run this Mvc app and register, the db tables I get is like the following:

and the correct schema:

The things to be questioned are a lot, from my point of view important is to determine if you: - can/should you mix application context and your model context ?