[CLOSED] Qtreeview multilevel child auto select

[XGuy]

how to implement a recursive function to auto select all the children of a root item inside QTreeview model and then give user, the ability to deselect each one he wishes!
Note: each child also can have children. deselect occurs one by one.

below code selects all the children successfully but i don't know how to implement deselect !!

@QObject::connect(ui->trvView, SIGNAL(clicked(QModelIndex)), this, SLOT(itemSelected(QModelIndex)));@

@void TrustChain::itemSelected(QModelIndex index)
{
QModelIndex childIndex;
if(!index.isValid())
{
return;
}

selectedItem = chainModel->itemFromIndex(index);
if(!selectedItem)
{
    return;
}

ui->trvView->selectionModel()->select(index, QItemSelectionModel::Select);
for(int i = 0; i < selectedItem->rowCount(); i++)
{
    childIndex = chainModel->index(i, 0, index);
    ui->trvView->selectionModel()->select(childIndex, QItemSelectionModel::Select);
    itemSelected(childIndex);
    while (selectedItem->parent() != 0)
    {
        selectedItem = selectedItem->parent();
    }
}

}@