Open a specific path in QTreeView

[Azadshahr]

Hi, I have a QTreeView which shows directory and file contents. I wanted to open QTreeView for a specific path like "c:\users\administrator" as a default. How should I do that? There is code sample for this job?

This is my code to show contents in QTreeView:

void MainWindow::ListDirectory(QString arg_smb_path)
{
    o_directorySystemModel = new QFileSystemModel(this);
    o_directorySystemModel->setFilter(QDir::NoDotAndDotDot | QDir::AllDirs | QDir::Hidden);
    o_directorySystemModel->setRootPath(arg_smb_path);

    ui->treeView->setModel(o_directorySystemModel);
    ui->treeView->hideColumn(1);

    o_fileSystemModel = new QFileSystemModel(this);
    o_fileSystemModel->setFilter(QDir::NoDotAndDotDot | QDir::Files | QDir::Hidden);
    o_fileSystemModel->setRootPath(arg_smb_path);

    ui->listView->setModel(o_fileSystemModel);
    ui->listView->setContextMenuPolicy(Qt::CustomContextMenu);
}

[Christian Ehrlicher]

Iterate through the model data and call expand() on the view for the indexes you want.