If implementd, recursively copies data from the incoming domain object list to the outgoing one, taking serialization levels into account. If a property does not conform to the requested serialization level - it will be assigned NULL. Must be called before sending data to client.

IList<T> FilterList<T>(
	IList<T> items,
	byte level
)
where T : Dtobase

Function FilterList(Of T As Dtobase) ( 
	items As IList(Of T),
	level As Byte
) As IList(Of T)