frameworks - How to get data on a foreign key?

Question

How to get data on a foreign key?

Request serviceResponse.Data = await _db.Orders.ToListAsync();

Returns the property customer= null.

There is a model.

 public class Order
{
    
    
   public Guid ID { get; set; }

   [Required]
    public DateTime ORDER_DATE { get; set; }

    public DateTime? SHIPMENT_DATE { get; set; }


   // [Required]
    public virtual Customer Customer { get; set; }


public class Customer
{
public Guid ID { get; set; }

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

public virtual ICollection<Order> Orders { get; set; }
  }

}

question from:https://stackoverflow.com/questions/65846835/how-to-get-data-on-a-foreign-key

Answer 1

Waitting for answers