EF_Code_First/EF_Code_First/Models/Student.cs

using System.ComponentModel.DataAnnotations.Schema;
using System.Text;

namespace EF_Code_First.Models
{
    public class Student
    {
        public int StudentId { get; set; }
        public string? StudentName { get; set; }
        public DateTime? DateOfBirth { get; set; }
        public byte[]? Photo { get; set; }
        public decimal? Height { get; set; }
        public float? Weight { get; set; }
        [ForeignKey ("Grade")]
        public int G_Id { get; set; }
        //Navigation Property
        public Grade Grade { get; set; }


        public override string ToString()
        {
            StringBuilder builder = new StringBuilder();
                        
            builder.Append(StudentId);
            builder.Append(" :");
            builder.Append(StudentName);
            builder.Append(" :");
            builder.Append(DateOfBirth);
            builder.Append(" :");
            builder.Append(Weight);
            builder.Append(" :");
            builder.Append(Height);
            return builder.ToString();
        }
    }
}