public bool IsInRole(params string[] roleItems)
        {
            List<string> itemList = new List<string>(roleItems);

            ICollection<Ghaozi_Role> RoleItems = DataBase.Ghaozi_Role.ToList();

                foreach (Ghaozi_Role rolea in RoleItems)
                {
                    if (rolea.RoleName == itemList[0])
                    {
                        foreach (Ghaozi_Role roleaa in rolea.Ghaozi_Role1)
                        {
                            if (roleaa.RoleName == itemList[1])
                            {
                                foreach (Ghaozi_Role roleaaa in roleaa.Ghaozi_Role1)
                                {
                                    if (roleaaa.RoleName == itemList[2])
                                    {
                                        return true;
                                    }
                                }
                            }
                        }
                    }
                }

            return false;
        }