Wt

auto layout = std::make_unique<Wt::WVBoxLayout>();

auto model = std::make_shared<Wt::WStringListModel>();
std::vector<Wt::WString> data = { "aaa", "bbb", "ccc" };
model->setStringList(data);

auto view = layout->addWidget(std::make_unique<Wt::WTreeView>());
view->setSelectionMode(Wt::SelectionMode::Single);
view->setModel(model);

auto button1 = layout->addWidget(std::make_unique<Wt::WPushButton>("Disable view"));
button1->clicked().connect([view]() {
  view->setDisabled(true);
});

auto button2 = layout->addWidget(std::make_unique<Wt::WPushButton>("Reset model"));
button2->clicked().connect([view, model]() {
  view->setModel(model);
});

root()->setLayout(std::move(layout));
root()->setMaximumSize(200, 200);