How to get the Primary Key(s) in Entity Framework 4.1, i.e. using DbContext

Question

The answers I\'m seeing here are for ObjectContext. Is there a property to determine an entity\'s primary key names when using DbContext?

Ah.. one of those times tha

Answer 1

You could find primary key value from EntityKey class (http://msdn.microsoft.com/en-us/library/system.data.entitykey.aspx).

and you could find EntityKey object from DbContext like so :

ObjectContext context = ((IObjectContextAdapter)dbContext).ObjectContext;
EntityKey key = context.ObjectStateManager.GetObjectStateEntry(model).EntityKey;