Adds a detached entity to this EntityManager and marks it with the specified EntityState. Throws an exception if an entity with the same key already exists in the manager or if the specified entity is not in a detached state.

'Declaration
 
Public Sub AttachEntity( _
   ByVal entity As Object, _
   Optional ByVal entityState As EntityState _
) 

'Usage
 
Dim instance As EntityManager
Dim entity As Object
Dim entityState As EntityState
 
instance.AttachEntity(entity, entityState)

public void AttachEntity( 
   object entity,
   EntityState entityState
)