Render partial view with dynamic model in Razor view engine and ASP NET MVC 3

Question

When I try to render a partial view whose model type is specified as    model dynamic   by using the following code     Html RenderPartial  PartialView   Model UserProfile      I get the following exception    System Web Mvc HtmlHelper lt dynamic gt   has no applicable method named  RenderPartial  but appears to have an extension method by that name  Extension methods cannot be dynamically dispatched  Consider casting the dynamic arguments or calling the extension method without the extension method syntax    However  the same code in a  aspx file works flawlessly  Any thoughts

User · Answer

Here s a way to pass a dynamic object to a view  or partial view   Add the following class anywhere in your solution  use System namespace  so its ready to use without having to add any references  -       namespace System               public static class ExpandoHelper                       public static ExpandoObject ToExpando this object anonymousObject                                IDictionary lt string  object gt  anonymousDictionary   HtmlHelper AnonymousObjectToHtmlAttributes anonymousObject                   IDictionary lt string  object gt  expando   new ExpandoObject                    foreach  var item in anonymousDictionary                      expando Add item                   return  ExpandoObject expando                                   When you send the model to the view  convert it to Expando         return View new  x 4  y 6  ToExpando       Cheers

User · Answer

I had the same problem  amp  in my case this is what I did   Html Partial    Views Cabinets  List cshtml    List lt Shop gt  ViewBag cabinets    and in Partial view   foreach  Shop cabinet in Model

User · Answer

Just found the answer  it appears that the view where I was placing the RenderPartial code had a dynamic model  and thus  MVC couldn t choose the correct method to use  Casting the model in the RenderPartial call to the correct type fixed the issue   source  Using Html RenderPartial   in ascx files

User · Answer

Instead of casting the model in the RenderPartial call  and since you re using razor  you can modify the first line in your view from   model dynamic   to   model YourNamespace YourModelType   This has the advantage of working on every  Html Partial call you have in the view  and also gives you intellisense for the properties

User · Answer

I was playing around with C  code an I accidentally found the solution to your problem haha  This is the code for the Principal view     model dynamic    Html Partial   Partial   Model as IDictionary lt string  object gt      Then in the Partial view     model dynamic    if  Model    null        foreach  var item in Model              lt div gt  item text lt  div gt                It worked for me  I hope this will help you too

User · Answer

There s another reason that this can be thrown  even if you re not using dynamic ExpandoObject  If you are doing a loop  like this    foreach  var folder in ViewBag RootFolder ChildFolders ToList           Html Partial  ContentFolderTreeViewItems   folder      In that case  the  var  instead of the type declaration will throw the same error  despite the fact that RootFolder is of type  Folder  By changing the var to the actual type  the problem goes away    foreach  ContentFolder folder in ViewBag RootFolder ChildFolders ToList           Html Partial  ContentFolderTreeViewItems   folder

User · Answer

Can also be called as   Html Partial   PartialView    ModelClass View Data

[asp.net-mvc] Render partial view with dynamic model in Razor view engine and ASP.NET MVC 3

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