public DataTable getalldatasinhvien() { CON = new ConnectData(); DataTable dt = null; dt = CON.getdata("SELECT * FROM View_SinhVien"); return(dt); }
public Boolean kiemtradangnhap(string user, string pass) { CON = new ConnectData(); DataTable dt = CON.getdata("select * from Users where username = '******' and password = '******' "); // lấy dữ liệu Boolean check = false; if (dt != null) { if (dt.Rows.Count == 1) { check = true; } else { check = false; } } return(check); }