我是MVC的新手,我不了解如何正确使用局部视图。我正在尝试在MVC应用程序中显示来自博客站点的RSS feed。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
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:
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>
我的困惑是如何调用控制器动作来获取局部视图?
最佳答案
您需要调用PartialView
而不是View,这是经过修改的操作的外观:
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);
}
}
然后,您将需要一个名为
RssFeed
的局部视图。