IT Bytes

After upgrading a Silverlight project to 3 I wondered if the story about passing exceptions from WCF to SL had changed. Previously, because WCF sends fault messages as 500 response codes SL could not see them. However, although I believe this is still true I spotted, Creating and Handling Faults in Silverlight, which explains how to change the end-point behaviour to return faults as 200 codes and therefore suddenly allowing Silverlight to see them. I did have a few teething problems with, mainly to do with me misreading the config soup. One quick gotcha is to remember to refresh your service reference so you can see the new exception, I mean fault, classes.