ASP.NET MVC 3 controller action for partial view

Question

I'm new to MVC and I don't understand how to use partial views correctly. I'm trying to display RSS feeds from a blog site in my MVC app. I'm using Razor and I have the following structure:

Controllers/HomeController.cs
Controllers/RssController.cs

Views/Home/Index.cshtml

Shared/_Layout.cshtml
Shared/_Rss.cshtml

HomeController:

 namespace MvcApp.Controllers
    {
        public class HomeController : Controller
        {
            public ActionResult Index()
            {
                ViewBag.Message = "Welcome to ASP.NET MVC!";

                return View();

            }

        }
    }

RssController:

namespace MvcApp.Controllers
{
    public class RSSFeedController : Controller
    {

        public ActionResult RssFeed()
        {
            string strFeed = "http://foo.wordpress.com/category/foo/feed/";

            using (XmlReader reader = XmlReader.Create(strFeed))
            {
                SyndicationFeed rssData = SyndicationFeed.Load(reader);

                return View(rssData);
            }
        }

    }
}

_Rss.cshtml:

@using System.ServiceModel.Syndication;
@using System.Text;
@using System.Xml.Linq;

<h2>RSSFeed</h2>
@foreach (var item in ViewData.Model.Items) 
{ 
string URL = item.Links[0].Uri.OriginalString; 
string Title = item.Title.Text;
StringBuilder sb = new StringBuilder();
foreach (SyndicationElementExtension extension in item.ElementExtensions)
{
    XElement ele = extension.GetObject<XElement>();
    if (ele.Name.LocalName == "encoded" && ele.Name.Namespace.ToString().Contains("content"))
    {
        sb.Append(ele.Value + "<br/>");
    }
}
Response.Write(string.Format("<p><a href=\"{0}\"><b>{1}</b></a>", URL, Title)); 
Response.Write("<br/>" + sb + "</p>"); 
}

_Layout.cshtml:

<div id="main">
    @RenderBody()
</div>
<div id="BlogContent">
    @Html.Partial("_Rss");
</div>

My confusion is how do I call the controller action for getting the partial view?

I think you're looking for Html.RenderAction or whatever it is in Razor... — dotjoe
– dotjoe, Commented Sep 1, 2011 at 18:42

GEOCHET · Accepted Answer · 2012-11-24 20:02:15Z

9

You need to be calling the PartialView rather than the View, here's how a modified action would look:

    public ActionResult RssFeed()
    {
        string strFeed = "http://foo.wordpress.com/category/foo/feed/";

        using (XmlReader reader = XmlReader.Create(strFeed))
        {
            SyndicationFeed rssData = SyndicationFeed.Load(reader);

            return PartialView(rssData);
        }
    }

You would then need to have a partial view called RssFeed.

edited Nov 24, 2012 at 20:02

GEOCHET

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answered Sep 1, 2011 at 21:45

jim tollan

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Comments

Ofer Zelig · Accepted Answer · 2011-09-01 18:41:05Z

4

@Html.RenderAction("RssFeed", "RSSFeed");

or

@Html.Action("RssFeed", "RSSFeed")

(without semicolon)

answered Sep 1, 2011 at 18:41

Ofer Zelig

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2 Comments

user686924 Over a year ago

The Html.Action("RssFeed", "RSSFeed") works but how should I get the ViewData from the RSSController?

Ofer Zelig Over a year ago

Whatever you set in ViewData in your action, is reflected in a Model variable in the view, even if it's partial. I mean, it's independent from the host page and the host page's model, it has "a life of its own".

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