I have a DataSet that is not cleared untill the application is closed. But I
want to associate a XmlDataDocument to the DataSet several times. If I try
this I get an ArgumentException saying that a XmlDataDocument cannot be
associated with a DataSet that already has an association. How do I remove
this association without clearing the DataSet? Another possibility would be
to retrieve the reference to the XmlDataDocument from the DataSet, but such a
reference doesn't seem to exist?