با سلام  خسته نباشید

من سه تا جدول زیر رو دارم

namespace WebAmlak.Models
{
    [Table("HallList")]
    public class HallListMDL
    {
        [Key]
        [DatabaseGenerated(databaseGeneratedOption: DatabaseGeneratedOption.Identity)]
        public Int64 HallListID { get; set; }

        [Required, StringLength(100)]
        public string HallName { get; set; }

        [Required]
        [DefaultValue(true)]
        public bool Status { get; set; }

        [Required]
        [DefaultValue(true)]
        public bool IsActive { get; set; }


        public ICollection<HallQuesMDL> HallQuess { get; set; 

 public ICollection<HallAnswer> HasllAnswers{ get; set;

}
    }
}

جدول دوم 

namespace WebAmlak.Models
{
    [Table("HallQues")]
    public class HallQuesMDL
    {
        [Key]
        [DatabaseGenerated(databaseGeneratedOption: DatabaseGeneratedOption.Identity)]
        public Int64 HallQuesID { get; set; }

        [Required, StringLength(100)]
        public string Subject { get; set; }

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

        [Required]
        [DefaultValue(true)]
        public bool Status { get; set; }

        [Required]
        [DefaultValue(true)]
        public bool IsActive { get; set; }

        // ............................. HallList ForeignKey ............................. //
        public Int64 HallListID { get; set; }

        [ForeignKey("HallListID")]
        public HallListMDL HallLists { get; set; }


        public ICollection<HallAnswerMDL> HallAnswers { get; set; }

    }
}

جدول سوم 

namespace WebAmlak.Models
{
    [Table("HallAnswer")]
    public class HallAnswerMDL
    {
        [Key]
        [DatabaseGenerated(databaseGeneratedOption: DatabaseGeneratedOption.Identity)]
        public Int64 HallAnswerID { get; set; }

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

        // ............................. HallList ForeignKey ............................. //
        public Int64 HallQuesID { get; set; }

        [ForeignKey("HallQuesID")]
        public HallQuesMDL HallQuess { get; set; }

        // ............................. HallList ForeignKey ............................. //
        public Int64 HallListID { get; set; }

        [ForeignKey("HallListID")]
        public HallListMDL HallLists { get; set; }

    }
}

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