c# 4.0 - Parsing Elements in Second Nesting Level of XML File -

i working on little executable application. application xml parser parse xml file , store data parsed database. xml file application magic on has following structure:

<?xml version="1.0" encoding="utf-8"?> <events>     <event>         <book>felicity fly</book>         <author>christina gabbitas</author>         <bookimgurl>http://www.whsmith.co.uk/images/products\957\255\9780957255203_t_f.jpg</bookimgurl>         <info>christina gabbitas signing copies of new book, felicity fly. books should bought whsmith. proof of purchase may necessary</info>         <date>25 may 2013</date>         <starttime>10:30</starttime>         <location>             <name>whsmith brent cross</name>             <address>brent cross shopping centre</address>             <city>london</city>             <county/>             <postcode>nw4 3fb</postcode>             <tel>020 8202 4226</tel>         </location>     </event>     <!-- many more events above here --> </events> 

and here have far in terms of code parsing logic.

namespace xmlparser {     public class parser     {         static void main(string[] args)         {             var path_to_xml = "data.xml";             var xdoc = xdocument.load(path_to_xml);             var events = e in xdoc.descendants("event")                          select new {                              book = (string)e.element("book").value,                              author = (string)e.element("author").value,                              bookimgurl = (string)e.element("bookimgurl").value,                              info = (string)e.element("info").value,                              date = (string)e.element("date").value,                              time = (string)e.element("starttime").value,                              // stuck here                          }         }     } } 

i stuck location node, don't know how parse location related information.

any appreciated.

thank you.

you have decide whether you're using (string)xelement casting or xelement.value property.

(string)e.element("book").value compiles , works fine, xelement.value string, casting string pointless. suggest using (string)xelement, because won't cause nullreferenceexception when element won't find.

you can use let keyword e.element("location") once, , use location-related values:

var xdoc = xdocument.parse(xml); var events = e in xdoc.descendants("event")              let l = e.element("location")              select new {                  book = (string)e.element("book"),                  author = (string)e.element("author"),                  bookimgurl = (string)e.element("bookimgurl"),                  info = (string)e.element("info"),                  date = (string)e.element("date"),                  time = (string)e.element("starttime"),                  location = new {                      name = (string)l.element("name"),                      address = (string)l.element("address"),                      city = (string)l.element("city"),                      county = (string)l.element("county"),                      postcode = (string)l.element("postcode"),                      tel = (string)l.element("tel")                  }              };  console.writeline(events.first().location.city);