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up vote 26 down vote favorite
6

How can I create an individual controller and model for a partial view? I want to be able to place this partial view any where on the site so it needs it's own controller. I am current rendering the partial as so

@Html.Partial("_Testimonials")
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4 Answers 4

up vote 42 down vote accepted

Why not use Html.RenderAction()?

Then you could put the following into any controller (even creating a new controller for it):

[ChildActionOnly]
public ActionResult MyActionThatGeneratesAPartial(string parameter1)
{
    var model = repository.GetThingByParameter(parameter1);
    var partialViewModel = new PartialViewModel(model);
    return PartialView(partialViewModel); 
}

Then you could create a new partial view and have your PartialViewModel be what it inherits from.

For Razor, the code block in the view would look like this:

@{ Html.RenderAction("Index", "Home"); }

For the WebFormsViewEngine, it would look like this:

<% Html.RenderAction("Index", "Home"); %>
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2  
the only thing with renderaction is of course that it makes a 2nd request, whereas renderpartial does it as part of the same initial request. 9/10 times won't matter but worth noting. see stackoverflow.com/questions/719027/renderaction-renderpartial for a little background –  jim tollan Jun 9 '11 at 8:19
    
In vbhtml I get the error "Expression does not produce a value" on @Html.RenderAction("MyActionThatGeneratesAPartial", "Home") –  KyleMit Oct 29 '14 at 23:17
    
@kylemit is your code like this? @{ Html.RenderAction("Index", "Home"); } –  George Stocker♦ Oct 29 '14 at 23:18
    
@GeorgeStocker, nope. You're right. The trick was to put it inside of a code block –  KyleMit Oct 29 '14 at 23:20
up vote 6 down vote

It does not need its own controller. You can use

@Html.Partial("../ControllerName/_Testimonials.cshtml")

This allows you to render the partial from any page. Just make sure the relative path is correct.

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2  
why would this get voted down? The assumption was that a separate controller was needed in order to render a partial on any page of the site. This is not true. You can render a partial from any controller. This ia a valid answer –  Slick86 Jun 9 '11 at 1:30
1  
Just guessing, whoever downvoted you probably wanted a viewmodel to go with the partial view, and leaving the creation of that to a seperate dedicated controller. Your example works great with no viewmodel, but forces the current (all) controllers to create/populate a viewmodel and pass it to the partial –  Per Hornshøj-Schierbeck Jan 7 '14 at 13:39
    
don't forget the extension: Html.Partial("../ControllerName/_Testimonials.cshtml") –  JoshYates1980 Sep 4 '14 at 19:43
up vote 4 down vote

If it were me, I would simply create a new Controller with a Single Action and then use RenderAction in place of Partial:

// Assuming the controller is named NewController
@{Html.RenderPartial("ActionName", 
                     "New", 
                      new { routeValueOne = "SomeValue" });
}
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2  
In your code snippet wouldn't it be better to use RenderAction as you described in your answer? –  Martin Nov 14 '14 at 13:04
up vote 3 down vote

The most important thing is, the action created must return partial view, see below.

public ActionResult _YourPartialViewSection() { return PartialView(); }

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