Getting the rows in a qtablewidget to new lines in a textfile in qt c++

[Lasith]

follwing code is used by me to read tablewidget rows and get the contents into a Qstring and then put the string into a textfile. Currently all the rows appear as single line in the textfile! How can I display each row as separate line?

void MainWindow::on_pushButton_3_clicked()
{

    QString itabtext = " ";
  for(int i=0;i<ui->tableWidget_2->rowCount();i++){
      for(int k=0;k<ui->tableWidget_2->columnCount();k++){
          QTableWidgetItem *itab = ui->tableWidget_2->item(i,k);

           itabtext+=itab->text();

      }
   
  }


  QFile mFile("C:/Users/Desktop/Qt/textfiles/test.txt");

  if(mFile.open(QIODevice::ReadOnly|QIODevice::WriteOnly|QIODevice::Text)){
    QTextStream out(&mFile);
 
    out<<itabtext;
  
    mFile.flush();
    mFile.close();

}

}

[joeQ]

@Lasith hi,friend,welcome.

I modified your code snippet at below.

void MainWindow::on_pushButton_3_clicked()
{
    QStringList lines; ///< First note, I used the QStringList
    for(int i=0;i<ui->tableWidget_2->rowCount();i++){
        for(int k=0;k<ui->tableWidget_2->columnCount();k++){
            QTableWidgetItem *itab = ui->tableWidget_2->item(i,k);
            lines += itab->text();
        }

    }

    /** you can use any char */
    QString str = lines.join(QChar('-'));
    ui->lineEdit_2->setText(str); ///< why didn't you to use QTextEdit ? 

    QFile mFile("C:/Users/Desktop/Qt/textfiles/test.txt");
    if(mFile.open(QIODevice::ReadOnly|QIODevice::WriteOnly|QIODevice::Text)){
        QTextStream out(&mFile);

        /** write every line of lines to file */
        for(const QString &line:lines){
            out << line << endl; ///< add endl
        }

        mFile.flush();
        mFile.close();
    }

}

[Lasith]

thanx! but I found the solution :D
void MainWindow::on_pushButton_3_clicked()
{

QString itabtext = " ";

for(int i=0;i<ui->tableWidget_2->rowCount();i++){
for(int k=0;k<ui->tableWidget_2->columnCount();k++){
QTableWidgetItem *itab = ui->tableWidget_2->item(i,k);
if(k==2){
itabtext+=itab->text()+"\n";
break;
}
itabtext+=itab->text();

  }

}

QFile mFile("C:/Users/Desktop/Qt/textfiles/test.txt");
QFile mFile("C:/Users/Desktop/Qt/textfiles/test.txt");

if(mFile.open(QIODevice::ReadOnly|QIODevice::WriteOnly|QIODevice::Text)){
QTextStream out(&mFile);

out<<itabtext;

mFile.flush();
mFile.close();

}

}

[VRonin]

While I'm here, you can use https://github.com/VSRonin/Qt-Model-Serialisation/tree/dev

CsvModelSerialiser modelSaver;
modelSaver->setModel(ui->tableWidget_2->model());
modelSaver->setCsvSeparator(" ");
QFile mFile("C:/Users/Desktop/Qt/textfiles/test.txt");
modelSaver->saveModel(&mFile);