Fetch the Properties from Nullable Child Collection using Entity Framework IQueryable

Question

I have 2 models

Contact

  public int  Id{ get; set; }
  public string  FirstName{ get; set; }
  public string  LastName{ get; set; }
  public string  Email{ get; set; }
  public virtual ICollection<Address>  Addresses { get; set; }
  
  
Address
    public int  ContactId { get; set; }
    public bool  IsPrimary { get; set; }
    public string  Line1 { get; set; }
    public string  Line2 { get; set; }
    public string  Line3 { get; set; }
    ...... and some more props

While making a database call using Entity Framework i have to convert the Entity to a custom View Model and i am using the following code now

 var dataset = await query.Select(c => new ContactListModel
                {
                    Id = c.Id,
                    FirstName = c.FirstName,
                    LastName = c.LastName,
                    Email = c.Email,                   
                    Line1 = (c.Addresses.FirstOrDefault(a => a.IsPrimary) != null) ? c.Addresses.FirstOrDefault(a => a.IsPrimary).Line1 : "",
                    Line2 = (c.Addresses.FirstOrDefault(a => a.IsPrimary) != null) ? c.Addresses.FirstOrDefault(a => a.IsPrimary).Line2 : "",
                    Line3 = (c.Addresses.FirstOrDefault(a => a.IsPrimary) != null) ? c.Addresses.FirstOrDefault(a => a.IsPrimary).Line3 : "",
                    Line4 = (c.Addresses.FirstOrDefault(a => a.IsPrimary) != null) ? c.Addresses.FirstOrDefault(a => a.IsPrimary).Line4 : "",
                    Address = c.Addresses.FirstOrDefault(a => a.IsPrimary),
                }).OrderByDynamic(sortBy, sortDirection).Paginate((tableState.Page * tableState.PageSize), tableState.PageSize).ToListAsync();
                

OrderByDynamic and Paginate are extension methods used to handle pagination and sorting

Can we assign the values of Line1,Line2,Line3 etc in any other ways. At present every line or for every properties i am checking the Primary Address from the list and checking for null and then assign the properties I have to assign couple more properties like Country Town Postcode etc as well from the address collection