C# 4 and .NET 4

950 ❘ ChaPTer 33 mAnipulAtinG xml
static void Main()
{
XDocument xdoc =
XDocument.Load(@"http://geekswithblogs.net/evjen/Rss.aspx");
var query = from rssFeed in xdoc.Descendants("channel")
select new
{
Title = rssFeed.Element("title").Value,
Description = rssFeed.Element("description").Value,
Link = rssFeed.Element("link").Value,
};
foreach (var item in query)
{
Console.WriteLine("TITLE: " + item.Title);
Console.WriteLine("DESCRIPTION: " + item.Description);
Console.WriteLine("LINK: " + item.Link);
}
Console.WriteLine();
var queryPosts = from myPosts in xdoc.Descendants("item")
select new
{
Title = myPosts.Element("title").Value,
Published =
DateTime.Parse(
myPosts.Element("pubDate").Value),
Description =
myPosts.Element("description").Value,
Url = myPosts.Element("link").Value,
Comments = myPosts.Element("comments").Value
};
foreach (var item in queryPosts)
{
Console.WriteLine(item.Title);
}
}
}
}
Console.ReadLine();
code download ConsoleApplication1.sln
Looking at this code, you can see that the Load() method of the XDocument object points to a URL where
the XML is retrieved. The first query pulls out all the main subelements of the element in the
feed and creates new objects called Title, Description, and Link to get at the values of these subelements.
From there, a foreach statement is run to iterate through all the items found in this query. The results are
as follows:
TITLE: Bill Evjen's Blog
DESCRIPTION: Code, Life and Community
LINK: http://geekswithblogs.net/evjen/Default.aspx
The second query works through all the elements and the various subelements it finds (these are
all the blog entries found in the blog). Though a lot of the items found are rolled up into properties, in the
www.it-ebooks.info