public SwitchCell(
string text,
bool on)
{
_root = new HBox();
Add(_root);
_labelBox = new HBox(false, 0);
_root.PackStart(_labelBox, true, true, 0);
_textLabel = new Gtk.Label();
_textLabel.SetAlignment(0, 0);
_textLabel.Text = text ?? string.Empty;
_labelBox.PackStart(_textLabel, false, true, 0);
_checkButton = new CheckButton();
_checkButton.SetAlignment(0, 0);
_checkButton.Active = on;
_checkButton.Toggled += OnCheckButtonToggled;
_root.PackStart(_checkButton, false, false, 0);
}