I haven't seen it implement HTTP_IF_MODIFIED_SINCE, but I would look into using the SyndicationFeed class. It makes it very simple to handle feeds without any parsing. I am currently using it for Atom feeds, but it is supposed to work for RSS as well: function SyndicationFeed GetFeed(string url) { XmlReader reader = XmlReader.
Create(url); SyndicationFeed feed = SyndicationFeed. Load(reader); return feed; } public ActionResult ShowFeed() { string feedUrl = "somefeedurl"; SyndicationFeed feed = GetFeed(feedUrl); return View(feed); } then in the view: %foreach (var item in ViewData.Model. Items) { %> ".
I haven't seen it implement HTTP_IF_MODIFIED_SINCE, but I would look into using the SyndicationFeed class. It makes it very simple to handle feeds without any parsing. I am currently using it for Atom feeds, but it is supposed to work for RSS as well: function SyndicationFeed GetFeed(string url) { XmlReader reader = XmlReader.
Create(url); SyndicationFeed feed = SyndicationFeed. Load(reader); return feed; } public ActionResult ShowFeed() { string feedUrl = "somefeedurl"; SyndicationFeed feed = GetFeed(feedUrl); return View(feed); } ...then in the view.
P.S. The class is in the System.ServiceModel. Web assembly – Trevor de Koekkoek Dec 15 '08 at 23:05 Your solution is for consuming feeds, not publishing (as asked) – Eduardo Molteni Jul 7 '09 at 12:57 Getting this error in view. CS1061: 'object' does not contain a definition for 'Items' and no extension method 'Items' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?) – coure2011 May 15 '10 at 11:11.
If you use HttpContext.Response.Cache. SetCacheability, SetExpires and SetMaxAge then the ASP. NET caching system will take care of this for you - it understands the If-Modified-Since header.
This blog entry shows how you can create an MVC Action Filter to do the necessary in MVC.
Yes, but I want to go a little further after the cache expires and check if there are new items after If-Modified-Since – Eduardo Molteni Jul 7 '09 at 12:34.
I ended up with this. Please comment or edit the post if you find any error or better way to do it. RssController Imports System.ServiceModel.
Syndication Imports System. Xml Imports System.Web. HttpContext Function MasterRSS() Dim baseURL As String = "http://www.mysite.com" Dim feed As New SyndicationFeed("MySite - Master RSS", "", New Uri(baseURL)) ''//Add a custom attribute.
Dim xqName As New XmlQualifiedName("CustomAttribute") feed. AttributeExtensions. Add(xqName, "Value") Dim sp As New SyndicationPerson("[email protected]", "Jerry Seinfeld", "http://Jerry.blog.com") feed.Authors.
Add(sp) Dim category As New SyndicationCategory("Category") feed.Categories. Add(category) feed.Contributors. Add(New SyndicationPerson("cosmo@mysite.
Com", "Cosmo Kramer", "http://kramer.blog.com")) feed. Copyright = New TextSyndicationContent("MySite 2008") feed. Description = New TextSyndicationContent("My description") ''//Add a custom element.
Dim doc As New XmlDocument() Dim feedElement As XmlElement = doc. CreateElement("CustomElement") feedElement. InnerText = "Some text" feed.
ElementExtensions. Add(feedElement) feed. Generator = "Custom" feed.
Id = "MySiteFeedID" feed. ImageUrl = New Uri("http://www.mysite.com/content/images/logo. Png") ''//Items Dim ModifiedSince As Date If Not Date.
TryParse(Current.Request. Headers("If-Modified-Since"), ModifiedSince) Then ModifiedSince = Date.Today. AddDays(-30) ''//Or whatever make sense to you.
Else ModifiedSince. AddMinutes(-5) ''//Just in case, we do not want to miss any item. End If ''//the list of items.
Dim items As New List(Of SyndicationItem)() Dim db As New mainDataContext Dim textContent As TextSyndicationContent, Item As SyndicationItem ''//Then send the list of post, comments, whatever. Dim Posts = (From p In db. Posts Where c.
Date >= ModifiedSince Order By p. Date Descending) For Each Post In Posts Dim sb As New StringBuilder sb. AppendFormat("{0}", Post.
FullText) textContent = New TextSyndicationContent(sb. ToString, TextSyndicationContentKind. Html) Item = New SyndicationItem("Post " + Post.PostID.
ToString, textContent, New Uri(baseURL + "/Post/View/" + Post.PostID. ToString), "Post" + Post.PostID. ToString, Post.
Date) items. Add(Item) Next If items. Count = 0 Then ''//send a 304 to the browser.
Return View("304") End If feed. Items = items feed. Language = "es-ar" feed.
LastUpdatedTime = (From I In items Select i. LastUpdatedTime Order By LastUpdatedTime Descending). FirstOrDefault ''//Not needed in this sample.''//Dim link As New SyndicationLink(New Uri("http://server/link"), "alternate", "Link Title", "text/html", 1000) ''//feed.Links.
Add(link) ViewData("feed") = feed Return View("Rss") End Function Rss View (rss. Aspx) Dim htmlwriter As System.IO. Stream = Response.
OutputStream Dim rssWriter As System.Xml. XmlWriter = System.Xml.XmlWriter. Create(htmlwriter) Dim feed As System.ServiceModel.Syndication.
SyndicationFeed = ViewData("feed") Dim rssFormatter As New System.ServiceModel.Syndication. Rss20FeedFormatter(feed) rssFormatter. WriteTo(rssWriter) rssWriter.Close() This way, you can reuse the view.
It seems you're confusing the server variable name with the actual header name: Current.Request. Headers("HTTP_IF_MODIFIED_SINCE") should be Current.Request. Headers("If-Modified-Since") – Duncan Smart Dec 18 '08 at 11:32 @Duncan: Fixed!
– Eduardo Molteni Jul 7 '09 at 12:50.
Rss View (rss. Dim htmlwriter As System.IO. Stream = Response.
Dim rssWriter As System.Xml. XmlWriter = System.Xml.XmlWriter. Dim feed As System.ServiceModel.Syndication.
Dim rssFormatter As New System.ServiceModel.Syndication.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.