How to get original values of an entity in Entity Framework?

Question

In EF 4.0, if I understand it right, there are two type of values in Entity : current values and original values.
We can set original values by calling ApplyOriginalValues(TEntity) method but how to get original values ?

Answer 1

@Eranga answer is outdated for EF 5. For some reason, EF 5 doesn't work fine when getting original values using an statement like this:

var originalValues = context.Entry(myEntity).OriginalValues;

My working solution uses AsNoTracking() method from DbSet, like the example below:

var originalEntity = context.MyEntities.AsNoTracking().FirstOrDefault(me => me.MyEntityID == myEntity.MyEntityID);

Answer 2

You can access them through ObjectStateEntry

var originalValues = context
         .ObjectStateManager.GetObjectStateEntry(myEntity).OriginalValues;