با سلام.

کلاس زیر رو دارم:

public partial class Tbl_Lesson
    {
        public int LessonID { get; set; }
        public string LessonName { get; set; }
        public byte LessonTypeID { get; set; }
        public Nullable<byte> SemesterID { get; set; }
        public Nullable<byte> UnitTypeID { get; set; }
        public Nullable<byte> PracticalHours { get; set; }
        public Nullable<byte> TheoreticalHours { get; set; }
        public string LessonPlanFile { get; set; }
        public string PlanVolumeFile { get; set; }
        public string CourseGuideFile { get; set; }
        public string KurykulumFile { get; set; }
        public Nullable<byte> EducationalGroupID { get; set; }
        public Nullable<byte> UnitCount { get; set; }
    
        public virtual Tbl_EducationalGroup Tbl_EducationalGroup { get; set; }
        public virtual Tbl_LessonType Tbl_LessonType { get; set; }
        public virtual Tbl_Semester Tbl_Semester { get; set; }
        public virtual Tbl_UnitType Tbl_UnitType { get; set; }
    }

در ویو نیز چنین نوشتم:

 @Html.TextBoxFor(x => x.LessonName, new { @id = "StudentFamily", @class = "form-control", style = "font-family:'W_YEKAN_0';text-align:right;width:88%;height:40px;float:right;font-size:20px" })
                                        @Html.ValidationMessageFor(x => x.LessonName, string.Empty, new { style = "margin-right:20px;float:right;font-weight:bold;" })

و در هنگام اجرای ویو با پیغام زیر مواجه می شوم:

The associated metadata type for type 'University.Models.Tbl_Lesson' contains the following unknown properties or fields: LessonTypeName. Please make sure that the names of these members match the names of the properties on the main type.

لطفا راهنمایی نمایید

با تشکر