private void PopulateMenus()
    {
        IEnumerable <FitnessManagement.Data.Menu> menus = securityProvider.GetAllMenusIgnoringRole(null);

        foreach (FitnessManagement.Data.Menu menu in menus)
        {
            TreeNode menuItem = new TreeNode(menu.Title, menu.ID.ToString());

            PopulateChildMenu(menuItem, menu.ID);

            tvwMenus.Nodes.Add(menuItem);
            menuItem.Expanded = false;
        }
    }