static void Copy() { var user = new User() { Id = 2, Name = "y1", Description = "aa" }; var title = new Article() { Id = 3, Name = "yy", Description = "bb" }; var cls = new MetaClass(typeof(User)); var title1 = cls.CopyTo(user, title, "Id,Description"); Console.WriteLine("Articile.Id(2)=" + title.Id.ToString()); Console.WriteLine("Articile.Name(yy)=" + title.Name.ToString()); Console.WriteLine("Articile.Description(aa)=" + title.Description.ToString()); }