public object CanDrawback() { try { string piid = System.Web.HttpContext.Current.Request.Params["piid"] ?? string.Empty; string errorMsg = string.Empty; bool temp = service.CanTaskRetrieve(piid, NG3.AppInfoBase.UserID.ToString(), out errorMsg); return(new JObject() { { "candrawback", temp }, { "errorMsg", errorMsg } }); } catch (Exception ex) { return(DCHelper.ErrorMessage(ex.Message)); } }