QueryServerWindow.createComboLevels C# (CSharp) Method

    private void createComboLevels()
    {
        combo_levels = ComboBox.NewText ();
        levels = Constants.Levels;

        //first value has to be any (but is ok to put the id value of the LevelUndefinedID)
        levels[0] = Constants.LevelUndefinedID.ToString() + ":" + Catalog.GetString(Constants.Any);

        UtilGtk.ComboUpdate(combo_levels, levels, "");
        combo_levels.Active = UtilGtk.ComboMakeActive(levels,
                Constants.LevelUndefinedID.ToString() + ":" +
                Catalog.GetString(Constants.Any));

        hbox_combo_levels.PackStart(combo_levels, true, true, 0);
        hbox_combo_levels.ShowAll();
        combo_levels.Sensitive = false; //level is shown when sport is not "undefined" and not "none"
        combo_levels.Changed += new EventHandler (on_combo_other_changed);
        UtilGtk.ComboPackShowAndSensitive(hbox_combo_levels, combo_levels);
    }