实体框架导航属性插入

Question

我有这些模型，即CustomerID的ParentID外键 我想通过导航属性为客户插入地址 我该怎么办？

public partial class Customer
{
    public long CustomerID { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }

    public virtual ICollection<Address> Addresses { get; set; }
    public virtual ICollection<Cart> Carts { get; set; }
    public virtual ICollection<Order> Orders { get; set; }
}

public partial class Address
{
    public long AddressID { get; set; }
    public long ParentID { get; set; }
    public string State { get; set; }
    public string City { get; set; }
    public string Address1 { get; set; }
    public string PostalCode { get; set; }

    public virtual Customer Customer { get; set; }
    public virtual Supplier Supplier { get; set; }
}