public class Serial
{
    [Key]
    [Column(TypeName = "BIGINT", Order = 0)]
    public Int64 LiIdR { get; set; }
    [ForeignKey("LiIdR")]
    public virtual Rows Row { get; set; }

    [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Int16 SRadifS { get; set; }
    public string AFromSerial { get; set; }
    public string AToSerial { get; set; }
    public int? IQnty { get; set; }
    public string AExpireDate { get; set; }
    public string AComment { get; set; }
}