private void GetSecondHandProducts() { facade.LoadSecondHandProducts(vm.BasicInfo.ProductID, (obj, args) => { if (args.FaultsHandle()) { return; } secondHandList = args.Result; RegisterSecondHandRspVM tmp = new RegisterSecondHandRspVM() { ProductID = ResCommonEnum.Enum_Select }; secondHandList.Insert(0, tmp); SetDataContext(); }); }