using System.ComponentModel.DataAnnotations; namespace PolyclinicDatabaseImplement.Models { public class CourseDiagnose { public int Id { get; set; } [Required] public int CourseId { get; set; } [Required] public int DiagnoseId { get; set; } public virtual Course Course { get; set; } = new(); public virtual Diagnose Diagnose { get; set; } = new(); } }