User Name Password Register
DaniWeb IT Discussion Community
All
What is DaniWeb IT Discussion Community?
You're currently browsing the XML, XSLT and XPATH section within the Software Development category of DaniWeb, a massive community of 427,768 software developers, web developers, Internet marketers, and tech gurus who are all enthusiastic about making contacts, networking, and learning from each other. In fact, there are 3,692 IT professionals currently interacting right now! Registration is free, only takes a minute and lets you enjoy all of the interactive features of the site.
Please support our XML, XSLT and XPATH advertiser: Programming Forums
Views: 2602 | Replies: 1 | Solved
Reply
Join Date: Aug 2006
Posts: 57
Reputation: Exelio is an unknown quantity at this point 
Rep Power: 3
Solved Threads: 0
Exelio Exelio is offline Offline
Junior Poster in Training

Xpath navigation in xml file

  #1  
Oct 9th, 2007
hi all,
i have the following xml file.

<rss version="2.0" xmlns:media="http://tools.search.yahoo.com/mrss/" >
<channel>
<title>SWF media</title>
<link>http://www.blogdigger.com/media/</link>
<description>Recent .swf files found by Blogdigger</description>
<item>
<title>Dollar Bus Rolls Into Town</title>
<link>http://feeds.feedburner.com/Chicagoist?m=1115</link>
<description>some description</description>
<pubDate>Thu, 23 Mar 2006 14:11:57 EST</pubDate>
<enclosure url="http://www.kitschn.com/flash/MenuCoverPage-DrinksMenu09-05.swf" type="application/x-shockwave-flash"/>
<media:content url="http://www.kitschn.com/flash/MenuCoverPage-DrinksMenu09-05.swf" type="application/x-shockwave-flash"/>
</item>

<item>
<title>E-mail</title>
<link>http://billarnold.typepad.com/poet_in_motion/2006/03/email.html</link>
<description>description 2/description>
<pubDate>Wed, 22 Mar 2006 17:28:28 EST</pubDate>
<enclosure url="http://www.softlab.ece.ntua.gr/~sivann/pub/swf/may02-smilepop-soapbox4.swf" type="application/x-shockwave-flash"/>
<media:content url="http://www.softlab.ece.ntua.gr/~sivann/pub/swf/may02-smilepop-soapbox4.swf" type="application/x-shockwave-flash"/>
</item>
</channel>
</rss>

i am using xpath to navigate through this xml file.
i used the following code to navigate through items node.

XmlDocument doc = new XmlDocument();
doc.Load(xmlfile);

XPathNavigator nav = doc.CreateNavigator();
XPathExpression exp = nav.Compile("rss/channel/item");

XPathNodeIterator iterator = nav.Select(exp);
XPathNodeIterator iter1;
while (iterator.MoveNext())
{
iter1 = iterator.Current.SelectChildren("media:content", "");
if (iter1.Count > 0)
{
while (iter1.MoveNext())
{
if (iter1.Current.HasAttributes == true)
{
string url = iter1.Current.GetAttribute("url", "");
}
}
}
}

but when i execute the code, the iter1.count always returns zero. if i select anyother children(like title or description)i am able to display the value.but when i select media:content(one of the subitems of item) i am not able to display the attribute value.

Where am i going wrong?

Any suggestions please

regards

Exelio
AddThis Social Bookmark Button
Reply With Quote  
Join Date: Aug 2006
Posts: 57
Reputation: Exelio is an unknown quantity at this point 
Rep Power: 3
Solved Threads: 0
Exelio Exelio is offline Offline
Junior Poster in Training

Solution Re: Xpath navigation in xml file

  #2  
Oct 9th, 2007
hi guys,

i solved it by myself. for everybody's reference,

iter1 = iterator.Current.SelectChildren("content", "http://tools.search.yahoo.com/mrss/");

i need to include the namespace URI in the selectchildren method and it worked.

Thanks

Regards

Exelio
Reply With Quote  
Reply

Only community members can participate in forum threads. You must register or log in to contribute.

DaniWeb XML, XSLT and XPATH Marketplace
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

 

Thread Tools Display Modes

Similar Threads
Other Threads in the XML, XSLT and XPATH Forum

All times are GMT -4. The time now is 1:15 pm.
Forum system based on vBulletin Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
©2003 - 2008 DaniWeb® LLC