Public Function BeginQueryFirst( _
   ByVal requestHeader As RequestHeader, _
   ByVal view As ViewDescription, _
   ByVal nodeTypes As NodeTypeDescriptionCollection, _
   ByVal filter As ContentFilter, _
   ByVal maxDataSetsToReturn As UInteger, _
   ByVal maxReferencesToReturn As UInteger, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

public IAsyncResult BeginQueryFirst( 
   RequestHeader requestHeader,
   ViewDescription view,
   NodeTypeDescriptionCollection nodeTypes,
   ContentFilter filter,
   uint maxDataSetsToReturn,
   uint maxReferencesToReturn,
   AsyncCallback callback,
   object asyncState
)