Selecting multiple files for reading

Christian Ehrlicher

@suslucoder Please start with basic c and c++ - everything else will not work out properly. And I'm pretty sure so will tell you the same.

deleted286

@JonB I want to ask you something.

I did it in the way you said. Now i can select multiple files.
After selecting, i want to do some operations. But my code do it just for one file. The other files are not functional.

Is there any way to do it like, do these for every different files.
I will share you my iteration, i hope it is correct:

Q_UNUSED(b);

   QStringList fileNames;

   fileNames = QFileDialog::getOpenFileNames(nullptr,
                                             ("choose"), "up.sakla", ("choosen(*.up)"));

  for (auto xfile : fileNames)
  {

   QFile file (xfile);
   file.open(QIODevice::ReadOnly);
   QDataStream in(&file);    // read the data serialized from the file
   QString str;
   qint32 a;
     qDebug() << str << a;
   in >> str >> a;

jsulm

@suslucoder So, did you select more than one file? How many entries do you have in fileNames? Did you use debugger to see what happens?
Add

for (auto xfile : fileNames)
{
    qDebug() << xfile;

to see what happens. There are so many things you can do to find out what happens...

deleted286

@jsulm said in Selecting multiple files for reading:

qDebug() << xfile;

Yes i select and i can see them. I want to do such a thing:

do some operation
for every file that i select

jsulm

@suslucoder What do you think you print out to qDebug here:

QString str;
qint32 a;
qDebug() << str << a;
in >> str >> a;

deleted286

@jsulm I wrote it for see the content of my file. Im asking another thing..

jsulm

@suslucoder Do you really think the order of the two last lines is correct?

J.Hilk

@suslucoder said in Selecting multiple files for reading:

I want to do such a thing:
do some operation
for every file that i select

so, what's stoping you ?

deleted286

@J-Hilk I dont know how to do it. Im asking for any idea

deleted286

@jsulm No you are right