Question

我已经整理了一个我认为有效的CSV导入器，虽然我收到了这个错误，但是如何让这个列为null，所以当它将它添加到表时会自动设置ID？我试过了：

csv.Configuration.WillThrowOnMissingFields = false;

但它无法识别，这是我在尝试上传时遇到的错误：

CsvHelper.ValidationException：找不到索引为0的标头匹配['ID']名称。如果您希望丢失某些标头并且想要忽略此验证，请将配置HeaderValidated设置为null。您还可以更改功能以执行其他操作，例如记录问题。'

    [HttpPost]
    [ActionName("CreateBulk")]
    public ActionResult CreateBulkUpload()
    {
        object db;
        var file = Request.Files["attachmentcsv"];
        using (var csv = new CsvReader(new StreamReader(file.InputStream), true))
        {
            var records = csv.GetRecords<Client>().ToList();
            foreach (var item in records)
            {
                var strip = item.homePage.Replace("https://www.", "").Replace("http://www.", "")
                    .Replace("https://", "").Replace("http://", "").Replace("www.", "");

                string[] URLtests =
                    {"https://www." + strip, "http://www." + strip, "https://" + strip, "http://" + strip};

                string[] Metric = MajesticFunctions.MajesticChecker(URLtests);
                var userId = User.Identity.GetHashCode();
                var UserTableID = 1;

                var newclient = new Client

                {
                    clientN = item.clientN,
                    homePage = Metric[0],
                    clientEmail = item.clientEmail,
                    monthlyQuota = item.monthlyQuota,
                    TrustFlow = Int32.Parse(Metric[1]),
                    CitationFlow = Int32.Parse(Metric[2]),
                    RI = Int32.Parse(Metric[3]),
                    MJTopicsID = item.MJTopicsID,
                    UserTableID = UserTableID
                };
                ViewBag.newdomain = newclient;
                return RedirectToAction("Index");
            }
        }
        return RedirectToAction("Index");

    }

Answer 1

您是否尝试过错误消息中提到的建议？像这样？

 csv.configuration.HeaderValidated = null;

Answer 2

确保同时包含以下两行：

csv.Configuration.HeaderValidated = null;

csv.Configuration.MissingFieldFound = null;

.NET CSV上传器允许空值

2 个答案: