Reading CSV file through GUI

[kripashree]

Re: CSV file from QT

Hi,

I am new to QT,can anyone let me know how to open csv file and read the csv file by giving a pushbutton option from the GUI?

Thanks In advance

Regards,
Kripashree

[dheerendra]

Nothing to do with Qt. It is normal file processing. Can you check QFile class in Qt & see how to open, read, print, process the contents of the file ? If you are ready with this, you can write slot to do the file processing. You can connect from PushButton signal to slot.

[beecksche]

Hi @kripashree ,

to open a file use QFile.

Following the example on the page

MainWindow::onButtonClicked()
{
    QFile file("in.csv");
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
        return;

    while (!file.atEnd()) {
        QByteArray line = file.readLine();
        QList<QByteArray> values = line.split(";"); // depending on your sperator in the csv file
        // do whatever you want with the values
    }
}

The onButtonClicked() function needs to be connected with a signal of your button. In general this connection is set in the constructor of your main window class. Eg:

MainWindow::MainWindow()
{
    connect(buttonPointer, &QPushButton::clicked, this, &MainWindow::onButtonClicked);
}

[MuhammedSa]

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[MuhammedSa]

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