Wt

Consider the example:

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);

After creation, the elements are selectable.
First we click the button "Disable view". Elements can no longer be selected.
Then we reset the model by clicking on the "Reset model" button. Elements can be selected again although the view is disabled.