slarny4/Demo1/Data/RemoteData/RemoteDataBase/DAO/User.cs

using System;
using System.ComponentModel.DataAnnotations;

namespace Demo.Data.RemoteData.RemoteDataBase.DAO
{
    public class UserDAO
    {
        public Guid UserId { get; set; } // Измените имя на UserId
        public string FIO { get; set; } = string.Empty;
        public int GroupID { get; set; }
    }
}