我收到“System.ArgumentException：已添加具有相同密钥的项目。” 在 ELMAH 日志中。该应用程序在 dev 上运行良好，没有任何例外。我确信实体中的所有字段都有唯一的名称。 代码：
[HttpPost]
public ActionResult Create(Candidate candidate)
{
if (ModelState.IsValid)
{
candidate.CreatedOn=candidate.UpdatedOn = DateTime.Now;
db.Candidates.Add(candidate);
db.SaveChanges();
//save original image & thumbnail
if (Request.Files.Count > 0)
{
candidate.PhotoPath = PersistImage(string.Concat(candidate.Name.Split(' ')[0], "-", candidate.Id.ToString()));
candidate.ResumePath = PersistResume(string.Concat(candidate.Name.Split(' ')[0], "-", candidate.Id.ToString()));
db.SaveChanges();
}
MembershipUser user = Membership.GetUser(candidate.UserId);
if (!user.IsApproved)
{
user.IsApproved = true;
Membership.UpdateUser(user);
}
TempData.Add("Info", UserMessages.Success);
FormsAuthentication.SetAuthCookie(candidate.UserId, createPersistentCookie: false);
return RedirectToAction("Listing", "Job");
}
TempData.Add("Info", UserMessages.ValidationFailure);
ViewBag.CategoryId = CacheManager.GetCategorySelectList(Convert.ToString(Convert.ToString(candidate.CategoryId)));
// ViewBag.SubCategoryId = new SelectList(db.SubCategories, "Id", "Name", candidate.SubCategoryId);
ViewBag.QualificationId = new SelectList(CacheManager.GetQualifications(), "Id", "Name", candidate.QualificationId);
ViewBag.CountryId = new SelectList(CacheManager.GetCountries(), "Id", "Name", candidate.CountryId);
return View(candidate);
}
堆栈跟踪：
System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Ointerns.Controllers.CandidateController.Create(Candidate candidate)
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.<BeginInvokeAction>b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult)
我已经检查了下面的线程，但无济于事