using System.Collections.Generic; using System.ComponentModel.DataAnnotations; using System.ComponentModel.DataAnnotations.Schema; namespace GazpromApp.Models; public class Property { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int Id { get; set; } public int ParentId { get; set; } [Required] public string Name { get; set; } = string.Empty; public string Value { get; set; } = string.Empty; public List Points { get; set; } = []; public List Equipment { get; } = []; }