android - Parsing xml tags with colons inside using C# -

i'm working in xamarin on 1 android app parsing xml webiste: http://video.cazin.net/rss.php, , populate listview , in particular have problem getting value tag:

 <media:thumbnail url="http://video.cazin.net/uploads/thumbs/2d07f1e49-1.jpg" width="480" height="360"/> 

i created namespace:

xmlnamespacemanager.addnamespace("ab", "http://search.yahoo.com/mrss/"); 

and tried value url attribute:

xmlnodelist xmlnode = document.selectnodes("rss/channel/item"); if (xmlnode[i].selectsinglenode("//ab:thumbnail[@url='http://video.cazin.net/rss.php']", xmlnamespacemanager) != null)                 {                     var thumbnail = xmlnode[i].selectsinglenode("//ab:thumbnail=[@url='http://video.cazin.net/rss.php']", xmlnamespacemanager);                     feeditem.thumbnail = thumbnail.value;                 } 

i tried this:

//ab:thumbnail/@url 

but got value of first image. i'm sure problem here somewhere because have same code parisng images xml tag without colon inside , it's working correctly. had similar experience , knows should put in braces? thanks

your current query searching thumbnail element url attribute equal http://video.cazin.net/rss.php - there none match this.

your 'i tried' query of //ab:thumbnail/@url closer, // means query start root of document, urls (but take first).

if want element matches taking current node context consideration, need include current node context in query - represented .. .//ab:thumbnail/@url find url attributes in thumbnail element contained current node. can see result in this fiddle.

i suggest use linq xml instead, however. it's lot nicer work old xmldocument api. example, find item thumbnail urls using code:

var doc = xdocument.load("http://video.cazin.net/rss.php");  xnamespace media = "http://search.yahoo.com/mrss/";  var thumbnailurls = doc.descendants("item")     .descendants(media + "thumbnail")     .attributes("url");