How do I Expand treeView when folder in listview is clicked.?

[SwePtr]

Hi, I have two models. treeViewmodel and listViewmodel.
To show folder in listView when click on treeView is simple.

 void Dialog::on_treeView_clicked(QModelIndex index){
    QString pathTmp;
    pathTmp = treeViewModel->fileInfo(index).absoluteFilePath();
    ui->listView->setRootIndex(listViewModel->setRootPath(pathTmp));
}

How do I expand the treeview from where folder in listview is clicked.?
The listview function right now is.

 void Dialog::on_listView_clicked(QModelIndex index){
    QString pathTmp;
    pathTmp=listViewModel->fileInfo(index).absoluteFilePath();
    ui->listView->setRootIndex(listViewModel->setRootPath(pathTmp));
  }

[SwePtr]

Ok, I figured it out.
I searched for "qt create index from path" and found that the soultion was in

QModelIndex QFileSystemModel::index(const QString & path, int column = 0) const

So here is the final code.

void Dialog::on_listView_clicked(QModelIndex index){
    QString pathTmp = listViewModel->fileInfo(index).absoluteFilePath();
    ui->listView->setRootIndex(listViewModel->setRootPath(pathTmp));
   QModelIndex  tv_index = treeViewModel->QFileSystemModel::index (pathTmp);
    ExpandToIndex (tv_index);
}

void Dialog::ExpandToIndex(QModelIndex index){
    while(index.isValid()){
        ui->treeView->expand(index);
        index = index.parent();
    }
}

Maybe not the best solution - but it works for now.