ModelState.isValid error

Question

I have created an Edit Action method but it is not going inside ModelState.isValid. How can I check the error?

  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);
      }
  }

KallDrexx · Accepted Answer · 2011-11-08T19:46:51.047

10

By accessing the ModelState.Errors collection. The collection contains a collection of ModelError items, which contain the error message and exception that was thrown to cause the model error.

Edit: I guess I should have looked myself. It seems that the controller's ModelState is actually a (dictionary) collection of ModelState's. To get all the errors, you should be able to get all instances of the ModelError classes via:

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

edited Nov 08 '11 at 19:46

answered Nov 08 '11 at 19:38

KallDrexx

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Updated, didn't realize the controller's ModelState was different. – KallDrexx Nov 08 '11 at 19:47
ModelState doesnt have any Select method. I am getting error on select. – DotnetSparrow Nov 08 '11 at 19:52
It's a `Linq` extension method. Make sure you have `using System.Linq` at the top of your code. – KallDrexx Nov 08 '11 at 20:04
Better answers here: http://stackoverflow.com/questions/573302/how-do-i-get-the-collection-of-model-state-errors-in-asp-net-mvc – GFoley83 Jun 10 '13 at 03:58

mrdnk · Answer 2 · 2014-09-05T13:54:44.087

1

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

To only get a list of the errored fields only, rather than all fields and error list (exclude Errors length == 0).

edited Sep 05 '14 at 13:54

answered Sep 05 '14 at 13:45

mrdnk

656
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ModelState.isValid error

2 Answers2