jeffora/Glimpse — comment on commit 48481feebc333d4a9cfd8ee893912361445568e2
File:  line 0
By jeffora:

On my phone at the moment so I can't recommit anything but I'd use a nullable GUID and 'as' operator instead of cast and then return result.GetValueOrDefault(). The problem with an exception in this specific case is that it actually occurs commonly and this is inefficient