No results from deserializing an XML string

I have a windows service built with VS 2012 vb.net 4.0

I want to desterilize this xml string:

<?xml version='1.0' encoding='UTF-8'?>
<response>
    <result numFound="96">
        <doc spendingCategory="Assistance">
            <record_count>2</record_count>
            <UniqueTransactionID>747cd6362dcfa5a2c1b2e49823b3fb5c</UniqueTransactionID>        </doc>
        <doc spendingCategory="Assistance">
            <record_count>3</record_count>
            <UniqueTransactionID>6dfae83f273289b0185ba25a821f7e27</UniqueTransactionID>        </doc>
        <doc spendingCategory="Assistance">
            <record_count>4</record_count>
            <UniqueTransactionID>3c713f5add6cc3b40042609a7ae5262c</UniqueTransactionID>        </doc>
    </result>
</response>


Into this structure:



    <XmlRoot("response")>
    Public Structure response
        Dim result As result
    End Structure
    Public Structure result
        Dim numFound As String
        <XmlArray>
        <XmlArrayItem("doc")>
        Dim doc As List(Of doc)
    End Structure



This is the code I am using for deserialization :


    Public Shared Sub DeSerialize_Response(ByVal sXML As String, ByRef oResponse As response)

        If String.IsNullOrEmpty(sXML) Then
            oResponse = Nothing
            Exit Sub
        End If

        Dim serializer As New Xml.Serialization.XmlSerializer(GetType(response), New XmlRootAttribute("response"))
        Dim settings As New XmlReaderSettings()

        Using textReader As New StringReader(sXML)
            Using xmlReader__1 As XmlReader = XmlReader.Create(textReader, settings)
                oResponse = DirectCast(serializer.Deserialize(xmlReader__1), response)
            End Using
        End Using

    End Sub

can you see why  my oResponse.result.doc object has a count of 0 and my numFound is "nothing"