using System.ComponentModel.DataAnnotations; namespace SoftwareInstallationDatabaseImplement.Models { public class PackageComponent { public int Id { get; set; } [Required] public int PackageId { get; set; } [Required] public int ComponentId { get; set; } [Required] public int Count { get; set; } public virtual Component Component { get; set; } = new(); public virtual Package Package { get; set; } = new(); } }