Qtableview open csv file

n-2204

Hi,
I am using qtableview and using action save , saving in a csv file, but when i'm opening the same file then its also adding header in the table, that i don't want,

also when I open csv file then the color is not coming ( adding color using a diff function, for speific columns using Qbrush), for rows which are filling through csv

void table_inpiut::action_Open() {
QString filters("CSV files (*.csv);");
QString fileName = QFileDialog::getOpenFileName(this, "Open file", QDir::homePath(), filters);
QFile file(fileName);
QStandardItemModel* model = qobject_cast<QStandardItemModel*>(ui.tableView->model());
 if (file.open(QIODevice::ReadOnly)){
 //  QMessageBox::information(0, "Error!", "Error opening file!", 0);
   int lineindex = 0;                     // file line counter
   QTextStream in_file(&file);                 // read to text stream     
   while (!in_file.atEnd()) {
       // read one line from textstream(separated by "\n") 
       QString fileLine = in_file.readLine();
       // parse the read line into separate pieces(tokens) with "," as the delimiter
       QStringList lineToken = fileLine.split(",", QString::SkipEmptyParts);
       // load parsed data to model accordingly
       for (int j = 0; j < lineToken.size(); j++) {
           QString value = lineToken.at(j);
           QStandardItem* item = new QStandardItem(value);
           model->setItem(lineindex, j, item);
       }
       lineindex++;
   }
   file.close();
}
}

what need to change in this code?

n-2204

I just called colorcolumn() fun inside openfile();
color is coming now
and for ignore 1row before while loop i added in_file.readLine()

SGaist

Hi,

The header is usually the first line of the file so just ignore it.

As for the colors, are you storing them in the CSV file ?

n-2204

@SGaist // read one line from textstream(separated by "\n")
QString fileLine = in_file.readLine();
in this i should ignore first line, like -1 something or any func. is there ?

No color I'm not storing in csv / but it can be case user import somefile which is not saved in this project.

SGaist

Either do one readLine before your while loop or use a Boolean to skip processing the first line you read in your while loop.

As for your color issue, how do you apply it ?

n-2204

@SGaist
ok i'll try this readline
color columns->

 QAbstractItemModel* abstrctitem_table1 = ui.tableView->model();
for (int irowTable1 = 0; irowTable1 < abstrctitem_table1->rowCount(); ++irowTable1) {
    for (int columnTable1 : {0, 1, 2, 3, 4, 5, 8})
        abstrctitem_table1->setData(abstrctitem_table1->index(irowTable1, columnTable1), QBrush(QColor(240, 248, 255)), Qt::BackgroundRole);
}
QObject::connect(abstrctitem_table1, &QAbstractItemModel::rowsInserted,
    abstrctitem_table1, [abstrctitem_table1](const QModelIndex& parent, int first, int last) {
        for (int irowTable1 = first; irowTable1 <= last;++irowTable1) {
            for (int columnTable1 : {0, 1, 2, 3, 4, 5, 8})
                abstrctitem_table1->setData(abstrctitem_table1->index(irowTable1, columnTable1, parent), QBrush(QColor(240, 248, 255)), Qt::BackgroundRole);
        }
    });

n-2204

I just called colorcolumn() fun inside openfile();
color is coming now
and for ignore 1row before while loop i added in_file.readLine()

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Qtableview open csv file