Spontaneous.WebApp.Services.DefaultMenuUtility.CombineMenus C# (CSharp) Method

        public Menu CombineMenus(List<Menu> menuList) 
        {

            if (menuList != null)
            {
                log.InfoFormat("[CombineMenus] menuList.Count={0}.", menuList.Count);
                if (menuList.Count == 1) return menuList[0];

                int menuPartCount = 0;
                Menu returnMenu = new Menu();
                foreach (var menu in menuList)
                {
                    foreach (var menuPart in menu.MenuParts)
                    {
                        if (!returnMenu.MenuParts.Exists(m => m.Name == menuPart.Name))
                        {
                            menuPart.Id = menuPartCount++;
                            returnMenu.MenuParts.Add(menuPart);
                        }
                    }
                }
                return returnMenu;
            }
            else
            {
                log.WarnFormat("[CombineMenus] menuList is null.", menuList.Count);
                return null;
            }
        }