How can I serialize a collection of SyndicationItem objects?

Question

I have a collection of SyndicationItem objects that I need to serialize but I'm not sure how I go about doing that. Suggestions?

IEnumberable<SyndicationItem> blogPosts = GetBlogPosts();

...

private IEnumerable<SyndicationItem> GetBlogPosts()
{
  var query = Enumerable.Empty<SyndicationItem>();
  foreach (string feed in Feeds)
  {
    try
    {
      using (XmlReader reader = XmlReader.Create(feed))
      {
        query = query.Union((from item in SyndicationFeed.Load(reader).Items
            orderby item.PublishDate descending
                select item).Take(NumberOfItemsToDisplay));
      }
    }
    catch (Exception ex)
    {
      Console.WriteLine("Invalid Feed: {0} ({1})", feed, ex.Message);
    }
  }
  query = query.OrderByDescending(i => i.PublishDate).Take(NumberOfItemsToDisplay);
  return query;
}

score 0 · Accepted Answer · answered Nov 01 '11 at 16:46

0

If you want to serialize a SyndicationItem, it has couple of methods you could use SaveAsRss20, SaveAsAtom10. To serialize collection, iterate through one by one and write it to some stream

SyndicationItem item = new SyndicationItem("Item Title", "Item Content", new Uri("http://Item/Alternate/Link"), "itemID", DateTimeOffset.Now);
XmlWriter writer = XmlWriter.Create("outfile.xml");
item.SaveAsRss20(writer);
writer.Close();

answered Nov 01 '11 at 16:46

iraSenthil

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Thanks for the suggestion. While that does work, I thought that this method was overkill for my needs. In the end I just decided to have my Linq query return a collection of simple POCO objects since I didn't really need all of the data offered by the SyndicationItem. – eponymous23 Nov 09 '11 at 20:53
And what if we need all the data offered by the SyndicationItem? – Wingjam Oct 19 '17 at 12:39

How can I serialize a collection of SyndicationItem objects?

1 Answers1