public List <TaiKhoan> LayDSTaiKhoan() { dt = db.LayDuLieu("select * from TaiKhoan"); List <TaiKhoan> ds = new List <TaiKhoan>(); foreach (DataRow r in dt.Rows) { TaiKhoan l = new TaiKhoan(); l.UserName = Convert.ToString(r[0]); l.MatKhau = Convert.ToString(r[1]); l.Remember = Convert.ToBoolean(r[2]); ds.Add(l); } return(ds); }