title: Snapshot History With Entity Framework
body: <p>I've been looking at some auditing hooks with Entity Framework.  Many of them show old/new value comparisons.  This does great for an audit trail but I'm looking to snapshot objects.  </p>
  
  <p>For example...  Let's say I have an application that manages products.  A product has multiple attributes and associated other objects.  Let's say I change an object 10 times.  Let's also say that's important that I can view screens of those object changes (not an audit trail but what the screen actually looked like in a read only format).  What I'm interested in is being able to retrieve the original EF product object (with all of the associated data) for all 10 of those changes (depending on which I want to see)and use that to bind to my screen.  </p>
  
  <p>If I'm using SQL Server, what type should I use for the serialized object nowadays (XML, blob, etc)?  Does it make sense to do this?  </p>