public int checklogin(string mand, string password)
{
AccessData acc = new AccessData();
SqlDataReader reader = acc.ExecuteReader("SELECT maND, MatKhau FROM NGUOIDUNG");
while (reader.Read())
{
if (reader[0].ToString() == mand && reader[1].ToString() == password)
{
//reader[0] tương ứng cho textbox username
//reader[1] tương ứng cho textbox password
return(1);
}
}
return(0);
}
