public JsonResult AddSku(SkuForTransactionMetadata skuForTransactionMetadata) { ModelState.Remove("CompanyId"); ModelState.Remove("BrandId"); ModelState.Remove("ProductId"); ModelState.Remove("CompanyName"); ModelState.Remove("BrandName"); ModelState.Remove("ProductName"); ModelState.Remove("SkuName"); if (!ModelState.IsValid) { return(Json(new AjaxResult { IsError = true, ErrorMessages = ModelState.Values.SelectMany(v => v.Errors).ToList() })); } var transactionInfo = GetTransactionSession(); if (transactionInfo != null) { var cartInfo = _transaction.AddSkuToInvoice(transactionInfo, skuForTransactionMetadata); if (cartInfo.Key) { SetTransactionSession(cartInfo.Value); } var ajaxresult = new AjaxResult { IsError = !cartInfo.Key, }; if (!cartInfo.Key) { ajaxresult.ErrorMessages.Add(new ModelError("Out of Stock.")); } return(Json(ajaxresult)); } var productNotFountresult = new AjaxResult { IsError = true, }; productNotFountresult.ErrorMessages.Add(new ModelError("SKU Is not Found.")); return(Json(productNotFountresult)); }