Select row and column from a table at the same time [SOLVED]

salvador

Hi,
i am generating a grid. The grid is a qTableView item. I want when the window open the first row and column to be highlighted. I write these two lines for this purpose:
@ui->tableView->selectRow(0);
ui->tableView->selectColumn(0);@

but only the first column appears highlighted. As far as i understand when we do a selection it erases the previous selection. Is there a way to make it remember the selection of the row so i have the desired outcome?

Thanks!

b1gsnak3

You must use "setSelectionModel":http://qt-project.org/doc/qt-4.8/qabstractitemview.html#setSelectionModel with a custom "QItemSelectionModel":http://qt-project.org/doc/qt-4.8/qitemselectionmodel.html

akonradwesolutions

QItemSelectionModel enables you to define the current selection very flexibly on a per-item basis:

@
QItemSelectionModel* selection = myView->selectionModel();

// Get model indexes to select

// For all indexes
selection->select(index, QItemSelectionModel::Select);
@

The example above is rather simple. Using QItemSelection and QItemSelectionRange with the selection model you can solve your problem a lot more elegantly.

salvador

nice, thanks a lot

podsvirov

Code example:

@
#include <QApplication>
#include <QTableWidget>

int main(int argc, char *argv[])
{
int rows = 5, columns = 3;

QApplication a(argc, argv);

QTableWidget table(rows, columns);

for(int i = 0; i < rows; i++) {
    for(int j = 0; j < columns; j++)
        table.setItem(i, j, new QTableWidgetItem(
                          QString("Item (%1, %2)")
                          .arg(i + 1).arg(j + 1)));
}

QModelIndex zero = table.model()->index(0, 0);
QModelIndex right = table.model()->index(0, columns - 1);
QModelIndex bottom = table.model()->index(rows - 1, 0);

QItemSelection selection(zero, right);
selection.merge(QItemSelection(zero, bottom), QItemSelectionModel::Select);
table.selectionModel()->select(selection, QItemSelectionModel::Select);

table.resizeRowsToContents();
table.resizeColumnsToContents();
table.show();

return a.exec&#40;&#41;;

}
@