Public Overloads Sub QueryFeatureDataAsync( _
   ByVal MapName As String, _
   ByVal LayerID As Integer, _
   ByVal QueryFilter As QueryFilter _
) 

Dim instance As MapServerProxy
Dim MapName As String
Dim LayerID As Integer
Dim QueryFilter As QueryFilter
 
instance.QueryFeatureDataAsync(MapName, LayerID, QueryFilter)

public void QueryFeatureDataAsync( 
   string MapName,
   int LayerID,
   QueryFilter QueryFilter
)