Conversion from QString to hex - qt

Question

I have the same code in 2 different projects. The Qstring::number(data.toLong(&ok,2),16) works in one project and in the other project it does not work. Does anyone know what the reason could be? The code is as follows
1) unsigned short status;
2) long int setting;
3) bool ok;
4) QString data_selected;
5) data_selected = lineEdit_data->text(); //get the binary value
6) data_selected = QString::number(data_selected.toLong(&ok, 2), 16); //convert binary value to hex value
7) setting = data_selected.toLong(&ok, 16); //convert string to integer
In line 5 I am getting data from a lineEdit. This line works fine. I just inserted a new text edit box and displayed the data there and there I can see data. I have data as "1000000000001000". Then I execute line 6, the output of which is '8008' in first case and '0' in the other project. This is the problem. The code is exactly the same. I have copied and pasted. But in debugging I can see this difference. Please can anyone tell me why this is happening?

Answer 1

I thought that comment under answer was clear.
Correct code like this to detect what is the problem:
ulong setting;
bool ok;
data_selected = data_selected.trimmed(); // first try without this line
ulong value = data_selected.toULong(&ok, 2);
if (ok) {
data_selected = QString::number(value, 16);
setting = data_selected.toULong(&ok, 16);
} else {
data_selected = "convertion error";
}