public int FindOneUser(UsersDTO User)
 {
     try
     {
         QuanLyUserDAO dao = new QuanLyUserDAO();
         return(dao.FindOneUser(User));
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }
 public DataTable LayTatCaUser()
 {
     try
     {
         QuanLyUserDAO dao = new QuanLyUserDAO();
         return(dao.LayTatCaUser());
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }