Derialization issues StringReader, XmlNodeReader - bug??

[Brian Rogers]

To whom it may concern:

Can anyone explain this behaviour in serialization and deserialization ?

I serialize an object using an XML serializer.
I de-serialize the object from a StringReader and it deserializes correctly
I de-serialize the object from a XmlNodeReader and it deserializes
incorrectly.
The xml code contained in the StringReader and XmlNodeReader is IDENTICLE.

I apologize for the hacked code snippet - it is not production code, just
code to demonstrate.

Looking forward to the feedback,
Brian.

DictionaryEntry entry;
XmlSerializer xs;
StringWriter sw;
StringReader sr;
XmlDocument doc;

entry = new DictionaryEntry ("key", "test");
sw = new StringWriter();
xs = new XmlSerializer( typeof (DictionaryEntr y));
xs.Serialize( sw, entry);

sr = new StringReader(sw .ToString());
entry = (DictionaryEntr y)xs.Deserializ e(sr);

doc = new XmlDocument();
doc.LoadXml(sw. ToString());
entry = (DictionaryEntr y)xs.Deserializ e(new XmlNodeReader(d oc));