using System.ComponentModel.DataAnnotations; namespace PF3.Models; public class Communication { [Key] public int Id { get; set; } [Required, MaxLength(100)] public string? Calling { get; set; } [Required, MaxLength(100)] public string? Email { get; set; } [Required, MaxLength(300)] public string? Meeting { get; set; } [Required] public int ContactId { get; set; } public Contact? Contact { get; set; } }