refresh dat.gui with new values

Question

I would like to refresh the dat.gui menu with new values. I have loaded a model and display in folder the name of the objects inside a gui folder.
How can I display the new

Answer 1

listen has a bug associated with it, if you use dropdown menus. See here: https://code.google.com/p/dat-gui/issues/detail?id=59

Here's a short function to update all controllers by iterating through all folders.

function updateDisplay(gui) {
    for (var i in gui.__controllers) {
        gui.__controllers[i].updateDisplay();
    }
    for (var f in gui.__folders) {
        updateDisplay(gui.__folders[f]);
    }
}