title: Set DataContract's DataMember attributes during runtime?
body: <p>is it possible to dynamically set the datacontract's datamember attributes during runtime? Basically what I need is to read in serialized instances of a class which contained the DataMemeber attributes on two properties at the time of serialization, but the current 'version' does not longer have them but I need to migrate the old data set in these properties over to the new handling... sooo what I kind of need is to let the datacontract deserializer read the data including these 'old' values, and re-serialize them with the new config (as these properties' data is now stored and handled entirely differently).</p>
  
  <p>Is this possible?</p>
  
  <p>Cheers &amp; thanks.
  -Jörg</p>