asp.net-mvc 用于局部视图的 ASP.NET MVC 3 控制器操作
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ASP.NET MVC 3 controller action for partial view
提问by user686924
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:
我是 MVC 的新手，我不明白如何正确使用局部视图。我正在尝试在我的 MVC 应用程序中显示来自博客站点的 RSS 提要。我正在使用 Razor，并且具有以下结构：
Controllers/HomeController.cs
Controllers/RssController.cs
Views/Home/Index.cshtml
Shared/_Layout.cshtml
Shared/_Rss.cshtml
HomeController:
家庭控制器：
namespace MvcApp.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
ViewBag.Message = "Welcome to ASP.NET MVC!";
return View();
}
}
}
RssController:
rss控制器：
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:
_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:
_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?
我的困惑是如何调用控制器操作来获取局部视图？
回答by jim tollan
You need to be calling the PartialViewrather than the View, here's how a modified action would look:
您需要调用的是PartialView而不是视图，这是修改后的操作的外观：
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.
然后，您需要有一个名为 的局部视图RssFeed。
回答by Ofer Zelig
@Html.RenderAction("RssFeed", "RSSFeed");
or
或者
@Html.Action("RssFeed", "RSSFeed")
(without semicolon)
（不带分号）
