Public Overloads Sub QueryFeatureIDs2Async( _
   ByVal MapName As String, _
   ByVal LayerDescription As LayerDescription, _
   ByVal QueryFilter As QueryFilter, _
   ByVal userState As Object _
) 

Dim instance As MapServerProxy
Dim MapName As String
Dim LayerDescription As LayerDescription
Dim QueryFilter As QueryFilter
Dim userState As Object
 
instance.QueryFeatureIDs2Async(MapName, LayerDescription, QueryFilter, userState)

public void QueryFeatureIDs2Async( 
   string MapName,
   LayerDescription LayerDescription,
   QueryFilter QueryFilter,
   object userState
)