I've been working on some treeview projects and when using the XMLDataProvider with the source property pointing to an XML file I get an error "All objects added to IDictionary must have a key". I've kinda tracked it down to the XmlNamespaceManager. Is it not possible to use the XMLDataProvider and point to an external file using only XAML
And you'll have to excuse me, when I saw that XMLDataProvider and Cider rhymed I was taken over by the spirit of Dr. Seuss and blogged about it in rhyme.
http://www.dotnetjunkies.com/WebLog/metablog/archive/2006/01/09/134650.aspx

XMLDataProvider in Cider
blackArt
Hhhmm. I thought this worked. Apologies. Can you send me a simple repro My email address is mark(bou)@(micro)soft.com without the ()'s
thanks
mark
renen
You might also see this solution:
http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=198796&SiteID=1