Operation could destabilize the runtime?

Question

I\'m having a little bit of trouble understanding what the problem is here. I have a bit of code that pulls records from a database using LINQ and puts them into an object

Answer 1

I found that OfType had some nasty side effects when using linq to sql. For example, parts of the linq that were previously evaluated after the query was run against the db were instead translated to SQL. This failed as those sections had no SQL equivalent. I ended up using .Cast instead which seems to solve the problem as well.