Dbset没有从数据库获取数据

Question

class InvoiceAppDBContext: DbContext
    {
        public InvoiceAppDBContext() : base("InvoiceDBContext")
        {

        }
        public DbSet<Users> User { get; set; }
        public DbSet<Invoice> Invoices { get; set; } 
    }




class DataBaseUserRespository : IUser
    {
        private InvoiceAppDBContext _dbContext;

        public DataBaseUserRespository()
        {
            _dbContext = new InvoiceAppDBContext();
        }
        public IEnumerable<Users> _userList
        {
            get
            {
                return _dbContext.User; // this is not working _userlist is showing null when i run it 
            }
        }

        public void SaveUser(Users user)
        {
            if(user.UserId == 0)
            {
                _dbContext.User.Add(user);
            }
            else
            {
                Users userEntity = _dbContext.User.Find(user.UserId);
                userEntity.Change(user);
            }
            _dbContext.SaveChanges();
        }
    }

所以DBSet或DBcontext没有从表中获取数据并将其放入IEnumerable<Users>列表中。

here i am debugging the userlist(accountList) and it is not showing data

希望这能解释我遇到的问题：）