Hiding a column in QTableView

[VRonin]

Do you reset the model or call insert/remove columns after hiding?

[Prince_0912]

Hi @gaurav118 ,
show the code where you got problem.

[gaurav118]

@VRonin I am not doing any reset or deletion of column

[gaurav118]

@Prince_0912 here is the code snippet

ui->tableView->setModel(_itemModel);
populateItemModel();
ui->tableView->setColumnHidden(1,true);

[VRonin]

can you show us the content of populateItemModel();?

[Prince_0912]

@gaurav118 This code is right but in populateItemModel(); method some issue i think.

[gaurav118]

@VRonin I am not maintaining that routine. populateItemModel() is filling StandardItemModel which is working fine.

[gaurav118]

@Prince_0912 the tableView is not being reffered into that routine at all

[Prince_0912]

@gaurav118 Your problem is like this i think,
https://forum.qt.io/topic/3399/solved-update-qtableview-after-hiding-columns

[VRonin]

this simple example should work:

#include <QApplication>
#include <QTableView>
#include <QStandardItemModel>
int main(int argc, char *argv[])
{
    QApplication application(argc, argv);

    // prepare a dummy table model
    QStandardItemModel tableModel;
    tableModel.insertRows(0, 5);
    tableModel.insertColumns(0, 3);
    for (int i = 0; i < tableModel.rowCount(); ++i) {
        for (int j = 0; j < tableModel.columnCount(); ++j) {
            tableModel.setData(tableModel.index(i, j), QStringLiteral("Row: %1, Col: %2").arg(i).arg(j));
        }
    }

    QTableView sourceTableView;
    sourceTableView.setModel(&tableModel);
    sourceTableView.setColumnHidden(1,true);
    sourceTableView.show();
    return application.exec();
}

Can you identify what that does differently from you?