Solved How to reference a indexWidget in a QTableView

[Rory_1]

I'm building a small QTableView (only 20 rows) with two columns: Name and Include. I want to use a QCheckBox in the include column, which is a bool type.

ui->infoFieldsTable->setModel(mw->infoView->ok);
for(int row = 0; row < mw->infoView->ok->rowCount(); row++) {
    QModelIndex idx = mw->infoView->ok->index(row,1);
    ui->infoFieldsTable->setIndexWidget(idx, new QCheckBox);
    // set state to match data model value
    ui->infoFieldsTable->indexWidget(idx);  // this is a QWidget, not a QCheckbox, so setCheckState not available
}

This works to the extent that the table shows the data model information and I can update the data model if I do not add the QCheckBox.

How do I reference the QCheckBox to update it to the data model value?

[mrjj]

Hi
The items supports checkbox with Qt::ItemIsUserCheckable
for the flags function.

Qt::ItemFlags yourmodel::flags(const QModelIndex &index) const 
{
    Qt::ItemFlags result = yourbasemodel::flags(index);
    if (index.column() == COL_U_WANT ) {
        result |= Qt::ItemIsUserCheckable;
    }
    return result;
}

That said
it just return as QWidget but you can cast it
QWidget *wid= ui->infoFieldsTable->indexWidget(idx);
QCheckBox *box= qobject_cast<QCheckBox *> ( wid )
if (box) {
box->xxxx
}

[Rory_1]

Thanks. I'll give that a go and report back. Much appreciated!

[Rory_1]

@mrjj Yes, that works. Thank you very much.