c# – EF 6 – 一对多映射始终为空

我的场地类看起来像：

public class Venue : BaSEObject,IBaSEObject
{
    [Required]
    public virtual User Owner { get; set; }

    [Required]
    [MaxLength(50)]
    public string Name { get; set; }
}

我的用户类看起来像：

public class User : BaSEObject,IBaSEObject
{

    [Required]
    public string Name { get; set; }

    [Required]
    [DisplayName("Email")]
    public string EmailAddress { get; set; }

    [Required]
    public string Password { get; set; }

    public bool Active { get; set; }


    public virtual ICollection<Venue> Venues { get; set; } 
}

DbContextClass按要求

public class SystemContext : DbContext,IDbContext
{
    public SystemContext() :
        base("SystemContext")
    {
        Database.SetInitializer<SystemContext>(null);
        Configuration.ProxyCreationEnabled = false;
        Configuration.LazyLoadingEnabled = true;
    }


    public SystemContext(string connectionstringname = "SystemContext") :
        base(connectionstringname)
    {
        Database.SetInitializer<SystemContext>(null);
        Configuration.ProxyCreationEnabled = false;


    }
    public new IDbSet<T> Set<T>() where T : class
    {
        return base.Set<T>();
    }


    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        modelBuilder.Entity<User>().HasMany(x=>x.Venues);
    }



    public DbSet<PublicQueries> PublicQueries { get; set; }
    public DbSet<Venue> Venues { get; set; }
    public DbSet<User> Users { get; set; }
}

当我从数据库加载User类时,Venues似乎总是为空？

我以前做过类似的事,但不记得我是如何重新安排的.

谢谢