Added product line to order but does not fill unit per price filed

 var createQuoteDetail = new Entity("salesorderdetail");
                    createQuoteDetail.Attributes["productid"] = new 
EntityReference("product",entityref.Id);
                    createQuoteDetail.Attributes["quantity"] = Convert.ToDecimal(1);
                    createQuoteDetail.Attributes["salesorderid"] = orderentity
                    createQuoteDetail.Attributes["uomid"] = GetDefaultUnit(service);
                    var quotedetaulsid = service.Create(createQuoteDetail);