Strange LINQ Exception (Index out of bounds)

Question

I have a table, we\'ll call Users. This table has a single primary key defined in SQL Server - an autoincrement int ID.

Sometimes, my LINQ

Answer 1

This almost certainly won't be everyone's root cause, but I encountered this exact same exception in my project - and found that the root cause was that an exception was being thrown during construction of an entity class. Oddly, the true exception is "lost" and instead manifests as an ArgumentOutOfRange exception originating at the iterator of the Linq statement that retrieves the object/s.

If you are receiving this error and you have introduced OnCreated or OnLoaded methods on your POCOs, try stepping through those methods.