There is no ViewData item of type IEnumerable SelectListItem that has the key country

Question

While binding dropdown in MVC  I always get this error  There is no ViewData item of type  IEnumerable lt SelectListItem gt   that has the key country   View   Html DropDownList  country    IEnumerable lt SelectListItem gt  ViewBag countrydrop  Select country     Controller  List lt Companyregister gt  coun   new List lt Companyregister gt     coun   ds getcountry     List lt SelectListItem gt  item8   new List lt SelectListItem gt     foreach  var c in coun         item8 Add new SelectListItem               Text   c country          Value   c countryid ToString              ViewBag countrydrop   item8  return View      I don t know how to resolve it

User · Answer

try this    Html DropDownList  ddlcountry   List lt SelectListItem gt  ViewBag countrydrop  Select country     In Controller  ViewBag countrydrop   ds getcountry   Select x   gt  new SelectListItem   Text   x country  Value   x countryid ToString      ToList

User · Answer

Note that a select list is posted as null  hence your error complains that the viewdata property cannot be found   Always reinitialize your select list within a POST action    For further explanation  Persist SelectList in model on Post

User · Answer

I had a the same problem and I found the solution that I should put the code to retrieve the drop down list from database in the Edit Method  It worked for me  Solution for the similar problem

User · Answer

Try This   Controller   List lt CountryModel gt  countryList   db countryTable ToList    ViewBag Country   new SelectList countryList   Country    CountryName

User · Answer

If you were using DropDownListFor like this    Html DropDownListFor m   gt  m SelectedItemId  Model MySelectList    where MySelectList in the model was a property of type SelectList  this error could be thrown if the property was null   Avoid this by simple initializing it in constructor  like this   public MyModel         MySelectList   new SelectList new List lt string gt         empty list of anything        I know it s not the OP s case  but this might help someone like me which had the same error due to this

User · Answer

In my case  the error occurred because I had not initialized the select list in the controller like this   viewModel MySelectList   new List lt System Web Mvc SelectListItem gt       As none of the existing answers made this clear to me  I post this  Perhaps it helps anybody

User · Answer

In your action change  ViewBag countrydrop   item8 to ViewBag country   item8 and in View write like this    Html DropDownList  country                       IEnumerable lt SelectListItem gt  ViewBag country                      Select country     Actually when you write            Html DropDownList  country                               IEnumerable ViewBag country                              Select country         or          Html DropDownList  country   Select Country       it looks in for IEnumerable lt SelectListItem gt  in ViewBag with key country  you can also use this overload in this case    Html DropDownList  country   Select country      it will look for ViewBag country and populates dropdown   See Working DEMO Example

User · Answer

your code is correct because in some cases it does not work  I also do not know where the error comes from but this can help you solve the problem  move the code in the head of the view like this   index cshtml    using expert Models         ViewBag Title    Create       Layout      Views Shared  Layout cshtml       Manager db   new Manager        ViewBag FORM PRESTATION   new SelectList db T BDE PRESTATION PRES OrderBy p   gt  p PRES INTITULE  Where p   gt  p T B PRES ID    null    PRES ID    PRES INTITULE          lt div class  form-group  gt                       lt label class    w3-blue  style   text-shadow 1px 1px 0  444  gt Domaine  lt  label gt     lt div class  col-md-10  gt    Html DropDownList  FORM PRESTATION   null  htmlAttributes  new    class    w3-select     required    true      lt  div gt   lt  div gt

User · Answer

you can use this    var list   new SelectList countryList   Id    Name     ViewBag countries list    Html DropDownList  countries  ViewBag countries as SelectList

User · Answer

You are facing this problem because when you are posting your forms so after reloading your dropdown is unable to find data in viewbag  So make sure that code you are using in get method while retrieving your data from db or from static list  copy paste that code into post verb as well   Happy Coding

User · Answer

Replace  country  with  countrydrop  in your view like this      Html DropDownList  countrydrop    IEnumerable lt SelectListItem gt  ViewBag countrydrop  Select country

[c#] There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key country

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