ModelState.isValid错误

Question

我创建了一个Edit Action方法，但它不在ModelState.isValid中。我该如何检查错误？

  public PartialViewResult UpdateAccountDetails(string accountNumber)
  {
      CreditReportService crService = new CreditReportService();

      AccountInfo account = new AccountInfo();
      account.Account = service.GetAccountDetails(accountNumber);
      account.AccountStatuses = service.GetAccountStatuses();
      account.AccountTypes = service.GetAccountTypes();
      account.CreditTerms = service.GetCreditTerms();

      return PartialView("_UpdateAccountDetails", account);
  }

  [HttpPost]
  public ActionResult UpdateAccountDetails(Account account)
  {
      if (ModelState.IsValid)
      {
          service.SaveAccount(account);
          TempData["message"] = "Account has been updated successfully!";

          AccountInfo accountInfo = new AccountInfo();
          accountInfo.AccountStatuses = service.GetAccountStatuses();
          accountInfo.AccountTypes = service.GetAccountTypes();
          accountInfo.CreditTerms = service.GetCreditTerms();
          return PartialView("_UpdateAccountDetails", accountInfo);
      }
      else
      {
          return PartialView("_UpdateAccountDetails", account);
      }
  }

Answer 1

访问ModelState.Errors集合。该集合包含ModelError项的集合，其中包含错误消息和引发模型错误的异常。

<小时/> 修改： 我想我应该看看自己。似乎控制器的ModelState实际上是ModelState的（字典）集合。要获得所有错误，您应该能够通过以下方式获取ModelError类的所有实例：

var errors = ModelState.Select(x => x.Value.Errors).ToList();

Answer 2

var errors = var errors = ModelState.Where(m=>m.Value.Errors.Any()).Select(m => m.Value.Errors).ToList();

仅获取错误字段的列表，而不是所有字段和错误列表（排除错误长度== 0）。