EntityKey.Inequality Operator (EntityKey, EntityKey)
Compares two EntityKey objects.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
Temporary keys have different comparison semantics than permanent keys:
Permanent keys determine equality based on the values of the contained key properties and the EntitySet. That is, you can have two separate EntityKey instances that are equal if their entity sets are the same and their key values are equal.
In addition, temporary keys have no EntitySet or key values, but regular keys do.
Available since 3.5