[WebMethod]
        [System.Web.Services.Protocols.SoapHeader("header")]
        public string GetSortCodeByFieldName(string ModelName, string FieldName)
        {
            if (header != null && header.ValidateLoginIdentity(header.clientTicket))
            {
                switch (ModelName.ToLower())
                {
                    case "base_button":                        
                        return BaseDal.GetSortCode<Base_Button>(FieldName).ToString();
                    case "base_buttonpermission":
                        return BaseDal.GetSortCode<Base_ButtonPermission>(FieldName).ToString();
                    case "base_coderule":
                        return BaseDal.GetSortCode<Base_CodeRule>(FieldName).ToString();
 default:
                        return "10000";
                }
            }
            else
            {
                throw new Exception("您没有权限!");
            }
        }