I have ArcGIS for Silverlight 2.1 installed and going to test my silverlight application. I got style code of ESRI default FeatureDataForm from MS expression blend without modifying the style yet and run the application in VS2010, failed in runtime error (see attached). I comfirmed that both software using version 2.1 references. But it runs well in previous version 2.0. Is anybody has same experience or advice? Is it a bug in version 2.1? Thanks.
