How to set text alignment on a column of QTableView programmatically ?

Text alignment on a column of QTableView:

The  subclussing QItemDelegate is  used by the subclass  model and override data().

QVariant MyModel::data(const QModelIndex& index, int role) const {
    if (index.column() == yourCellIndex && role == Qt::TextAlignmentRole) {
        return Qt::AlignLeft;
    } else {
        return QAbstractTableModel::data(index, role);
    }
}

The simple way of easiest code is:

QSqlTableModel *model2= new QSqlTableModel();
 
model2->setTable("Save");
model2->select();
 
QSortFilterProxyModel *proxy1=new QSortFilterProxyModel();
proxy1->setSourceModel(model2);
 
QStandardItemModel *modd=new QStandardItemModel();
 
for (int z =0; z< proxy1->rowCount(); ++z)
    {
    for (int y =0; y< proxy1->columnCount(); ++y)
        {
        QStandardItem *item= new QStandardItem();
         item->setText(proxy1->index(z,y).data().toString());
         item->setTextAlignment(Qt::AlignCenter);
         modd->setItem(z,y,item);
         }
}
ui->tableView->setModel(modd);