Viewbag not working in Explicit Partial View

Question

I have a list view And i want to add a create partial to the page.

@model IEnumerable <blah.Domain.Entities.blah>

@Html.Partial("_Quickblah", new blah.Domain.Entities.blah());

  public ViewResult _Quickblah()
        {
            ViewBag.CategoryID = new SelectList(Repository.Categorys, "CategoryID", "Title");

            Blah blah = new Blah () { CreatedDate = DateTime.Now };

            return View(blah);
        }

and i get the error

There is no ViewData item of type 'IEnumerable' that has the key 'CategoryID'.

how can i fix this?

you are passing a model into a partial where does this contain? — CR41G14, Mar 05 '13 at 15:39

Darin Dimitrov · Accepted Answer · 2013-03-05T16:16:28.440

2

When you call Html.Partial your _Quickblah controller action is not called and of course the ViewBag.CategoryID is not assigned (because I assume that in your main controller action that rendered this view you didn't set it). You should use Html.Action instead:

@Html.Action("_Quickblah")

Also in your _Quickblah action make sure that you are returning a partial view:

public ActionResult _Quickblah()
{
    ViewBag.CategoryID = new SelectList(Repository.Categorys, "CategoryID", "Title");
    Blah blah = new Blah () { CreatedDate = DateTime.Now };
    return PartialView(blah);
}

edited Mar 05 '13 at 16:16

answered Mar 05 '13 at 15:41

Darin Dimitrov

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the error i got "CS1928: 'System.Web.Mvc.HtmlHelper>' does not contain a definition for 'Partial' and the best extension method overload 'System.Web.Mvc.Html.PartialExtensions.Partial(System.Web.Mvc.HtmlHelper, string, object, System.Web.Mvc.ViewDataDictionary)' has some invalid arguments – Evildommer5 Mar 05 '13 at 15:46
@DarinDimitrov, Could we use `@Html.Action()` ? Or when we prefer which is the better? – AliRıza Adıyahşi Mar 05 '13 at 15:48
@Evildommer5, you should use `Html.Action()` instead of `Html.Partial()`. I have updated my answer. – Darin Dimitrov Mar 05 '13 at 15:59
There is no ViewData item of type 'IEnumerable' that has the key 'CategoryID'. Is my dropdown set properly? @Html.DropDownList("CategoryID", string.Empty) – Evildommer5 Mar 05 '13 at 16:00
1

Did you replace the `@Html.Partial` with `@Html.Action`? – Darin Dimitrov Mar 05 '13 at 16:02
This now returns the error Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'. – Evildommer5 Mar 05 '13 at 16:04
In your _Quickblah controller action replace `return View(blah);` with `return PartialView(blah);` – Darin Dimitrov Mar 05 '13 at 16:15
1

Do you have a view called `_Quickblah.cshtml` for the same controller? Also what's in the exception stacktrace? – Darin Dimitrov Mar 05 '13 at 16:20

Viewbag not working in Explicit Partial View

1 Answers1