The ViewData item that has the key 'CityId' is of type 'System.Int32' but must be of type 'IEnumerable'

Question

 `       public ActionResult Edit(int id = 0)
    {
        property property = db.Properties.Find(id);

        try
        {
            ViewBag.City = new SelectList(db.Cities, "CityId", "City", property.CityId);
            ViewBag.Locality_Id = new SelectList(db.Areas, "Locality_Id", "Locality", property.Locality_Id);
            ViewBag.citylist = _data.getCity();
            ViewBag.typeproperty = _data.TypeProperty();
            ViewBag.Rooms = _data.RoomDetails();
            ViewBag.bath = _data.Bathroom();
            ViewBag.twowheel = _data.twowheeler();
            ViewBag.fourwheel = _data.fourwheeler();
            ViewBag.dir = _data.Direction();
            ViewBag.floor = _data.Flooring();
            ViewBag.water = _data.WaterSupplies();
            ViewBag.furnish = _data.Furnishes();
            ViewBag.Amenities = new SelectList(db.Amenities, "AmenitiesId", "Amenitie");
        }
        catch (Exception ex)
        {
           Console.Write( ex.InnerException.StackTrace.ToString());
        }



        if (property == null)
        {
            return HttpNotFound();
        }
        return View(property);
    }`    

 <div class="form-box-left">
                   <h5>* Select The City :</h5>
                 @Html.DropDownList("CityId", null, "Select City", new { @class = "text-box", Id = "City" })
                  @Html.ValidationMessageFor(model => model.CityId)
                   <h5>* Locality :</h5>

Same code I'm using for the create page and its working there but not on the edit page . I changed my code according to you but its still not submitting the data. While getting time it is ok.

Can we see the controller code for the edit and create action methods? — JTMon, Sep 02 '14 at 12:35

Bappi Datta · Answer 1 · 2014-09-02T12:37:15.527

1

Following code is the example of using empty DropDownList:

@Html.DropDownList("CityId", Enumerable.Empty<SelectListItem>(), "Select City", new { @class = "text-box", Id = "City" })

To Populate a DropDownList with relevant data you may send data using ViewBag.

Example:

First, you need to sore list of city into ViewBag.City.

ViewBag.City = new SelectList(cityList, value, text, selectedCity)

Then you can use ViewBag.City into DropDownList.

@Html.DropDownList("CityId", ViewBag.City as SelectList, "Select City", new { @class = "text-box", Id = "City" })

edited Sep 02 '14 at 12:37

answered Sep 02 '14 at 11:15

Bappi Datta

1,360
8
14

This way it is not selecting the city for the edit page. It is not even selecting the list of cities as well . – Smoking monkey Sep 02 '14 at 11:45
I want a particular city to be selected besides populating it with the list of city.. This way I am able to get the list of cities only. – Smoking monkey Sep 02 '14 at 12:33
@Smokingmonkey, The selected value will be the value of the property `CityId` so if you set the value `CityId = 5` in your model and you have a `SlectListItem` with the value of 5, then it will be selected. – Sep 04 '14 at 10:20

Marcin Wachulski · Answer 2 · 2014-09-02T11:19:37.040

0

You passed null as elements for Html.DropDownList. In such case engine picks elements from ViewData dictionary under key of "CityId". I assume there is an object of type Int32 there (i.e. ViewData["CityId"]). That's the default behavior.

edited Sep 02 '14 at 11:19

answered Sep 02 '14 at 11:11

Marcin Wachulski

567
4
14

But ho wis it working for the create page then ? – Smoking monkey Sep 02 '14 at 11:47

The ViewData item that has the key 'CityId' is of type 'System.Int32' but must be of type 'IEnumerable'

2 Answers2