QTableWidget with different types

evergreen

Hello, I would like to display an editable QTableWidget, but with some item only editable as int and some others as strings.
I can't find a solution in the doc.

Is it possible? How could it be done?

Thanks

silver47

Well, you can set any widget into Cell, for example:
QLineEdit for strings and QSpinBox for digits.
@QTableWidget::setCellWidget ( int row, int column, QWidget * widget )@

evergreen

That's a good idea. Thanks.

However, I've just tested it and there's a problem :
My QTableWidget is composed by about a thousand cells. So when I apply the method that create QLineEdit or QSpinBox, it takes about 5 seconds to display while when I was using only QTableWidgetItem it was immediate.

So, If someone know a way to specify the type of a QTableWidgetItem, it would be much better.

silver47

QTableWidget provides basicaly possibility and works slowly. For more flexible possibility use QStandardItemModel & QTableView or QAbstractItemModel & QTableView

evergreen

I found a more simple solution with the class QIntValidator
I put a QLineEdit with this validator on the item of the table I want to edit.
Works perfectly.

Thanks for helps.

MrMaavin

I used this solution where you have a QLineEdit in each cell.

for(int trow=0; trow <= 2; trow++ )
    {
        for(int tcolumn=0; tcolumn <= 3; tcolumn++ )
        {
            QLineEdit * tableline = new QLineEdit;
            tableline->setValidator( new QDoubleValidator(0, 100, 2, this) );
            ui->tableWidget->setCellWidget ( trow, tcolumn,  tableline);
        }
}

VRonin

probably it's just my personal and never ending hate for setCellWidget but, especially for cases like this one where it applies to many cells, a combination of setFlag and a QStyledItemDelegate derived class is the way to go