Help me to findout location details from co ordinates in Vb.net

Dec 17, 2013 at 7:00 PM
Dim places As List(Of Placemark)
    Dim st = GMapProviders.GoogleMap.GetPlacemarks(New PointLatLng(54.6961334816182, 25.2985095977782), places)
    For Each place In places
        MsgBox(place.CountryName.ToString)

    Next

    Dim status As GeoCoderStatusCode
this code is not working :-(