QFileDialog cancelation

Question

I'm new to QT. Currently in my project I implemented QFileDialog.

In my usecase : whenever user choose a text file, it executes functionA. However, I found that if I click cancel in the fileDialog, functionA will still be executed.

This is my code snipplet:

QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"),
                                                    "/home",
                                                 tr("Text File (*.txt"));

// I want something like following :

if(QFileDialog.isOkButtonClicked)
{
    // execute functionsA
}

I looked into QFileDialog documentation and nothing similiar. Is it possible to achieve this or is there any other solution ? thanks.

http://doc.qt.io/qt-5/qfiledialog.html#getOpenFileName The doc is saying: "This is a convenience static function that returns an existing file selected by the user. If the user presses Cancel, it returns a null string." — Alexander V, May 26 '15 at 03:13
Thanks for reply @AlexanderVX. I added `if(!fileName.isEmpty()&&fileName!="")` and it works. But i'm not sure is it what u connote ? — LOK CARD, May 26 '15 at 03:23

score 11 · Accepted Answer · answered May 26 '15 at 08:38

11

thanks to AlexanderVX

the solution is simple :

if(!fileName.isEmpty()&& !fileName.isNull()){
// functionA
}

answered May 26 '15 at 08:38

LOK CARD

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QFileDialog cancelation

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