QTableView - alignment/selection problem

[schnitzel]

but it goes back to being right aligned once you finish editing - right?

See if the following works better:

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent), ui(new Ui::MainWindowClass)
{
    ui->setupUi(this);
 
    ui->tw->setColumnCount(4);
    ui->tw->setRowCount(4);
 
    for(int row=0; row < ui->tw->rowCount(); row++)
    {
        for(int col=0; col < ui->tw->columnCount(); col++)
        {
            QTableWidgetItem *twi = new QTableWidgetItem(QString("row%1 col%2").arg(row+1).arg(col+1));
            if(col == 2)
                twi->setTextAlignment(Qt::AlignRight);
            ui->tw->setItem(row,col,twi);
 
        }
    }
}

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent), ui(new Ui::MainWindowClass)
{
    ui->setupUi(this);

    ui->tw->setColumnCount(4);
    ui->tw->setRowCount(4);

    for(int row=0; row < ui->tw->rowCount(); row++)
    {
        for(int col=0; col < ui->tw->columnCount(); col++)
        {
            QTableWidgetItem *twi = new QTableWidgetItem(QString("row%1 col%2").arg(row+1).arg(col+1));
            if(col == 2)
                twi->setTextAlignment(Qt::AlignRight);
            ui->tw->setItem(row,col,twi);

        }
    }
}

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I'm attaching the project just in case.

hope this helps. I'm also still learning.