Public Function BeginGetAreasAndLengthsGeodesic( _
   ByVal SpatialReference As SpatialReference, _
   ByVal InPolygonArray() As Polygon, _
   ByVal LengthUnit As LinearUnit, _
   ByVal AreaUnit As LinearUnit, _
   ByVal AreaUnitEnum As esriAreaUnits, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As GeometryServerProxy
Dim SpatialReference As SpatialReference
Dim InPolygonArray() As Polygon
Dim LengthUnit As LinearUnit
Dim AreaUnit As LinearUnit
Dim AreaUnitEnum As esriAreaUnits
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginGetAreasAndLengthsGeodesic(SpatialReference, InPolygonArray, LengthUnit, AreaUnit, AreaUnitEnum, callback, asyncState)

public IAsyncResult BeginGetAreasAndLengthsGeodesic( 
   SpatialReference SpatialReference,
   Polygon[] InPolygonArray,
   LinearUnit LengthUnit,
   LinearUnit AreaUnit,
   esriAreaUnits AreaUnitEnum,
   AsyncCallback callback,
   object asyncState
)