Custom Object i WebService

Hej,

Er for første gang begyndt at lege lidt med webservices. Jeg har nu et lille problem. Jeg skal returnere mit eget object. Når jeg gør det, og køre en test, får jeg denne fejl:

System.InvalidOperationException: There was an error generating the XML document. ---> System.InvalidOperationException: Kaje cannot be serialized because it does not have a parameterless constructor.
  at System.Xml.Serialization.TypeDesc.CheckSupported()
  at System.Xml.Serialization.TypeScope.GetTypeDesc(Type type, MemberInfo source, Boolean directReference, Boolean throwOnError)
  at System.Xml.Serialization.TypeScope.GetTypeDesc(Type type)
  at System.Xml.Serialization.XmlSerializationWriter.CreateUnknownTypeException(Type type)
  at System.Xml.Serialization.XmlSerializationWriter.WriteTypedPrimitive(String name, String ns, Object o, Boolean xsiType)
  at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write1_Object(String n, String ns, Object o, Boolean isNullable, Boolean needType)
  at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write2_ArrayOfAnyType(Object o)
  at Microsoft.Xml.Serialization.GeneratedAssembly.ArrayListSerializer.Serialize(Object objectToSerialize, XmlSerializationWriter writer)
  at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
  --- End of inner exception stack trace ---
  at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
  at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle)
  at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces)
  at System.Xml.Serialization.XmlSerializer.Serialize(TextWriter textWriter, Object o, XmlSerializerNamespaces namespaces)
  at System.Xml.Serialization.XmlSerializer.Serialize(TextWriter textWriter, Object o)
  at System.Web.Services.Protocols.XmlReturnWriter.Write(HttpResponse response, Stream outputStream, Object returnValue)
  at System.Web.Services.Protocols.HttpServerProtocol.WriteReturns(Object[] returnValues, Stream outputStream)
  at System.Web.Services.Protocols.WebServiceHandler.WriteReturns(Object[] returnValues)
  at System.Web.Services.Protocols.WebServiceHandler.Invoke()

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Mit object ser sådan ud:

Public Class Kaje
    Implements IComparable

    Private _kaje As String
    Private _point As Integer

    Public Sub New(ByVal kaje As String, ByVal point As Integer)
        MyBase.New()
        _kaje = kaje
        _point = point
    End Sub

    Public ReadOnly Property Kaje() As String
        Get
            Return _kaje
        End Get
    End Property

    Public ReadOnly Property Point() As Integer
        Get
            Return _point
        End Get
    End Property

    Public Function CompareTo(ByVal o As Object) As Integer Implements IComparable.CompareTo
        Dim mo As Kaje = CType(o, Kaje)
        If _point = mo._point Then
            Return _kaje.CompareTo(mo._kaje)
        Else
            Return _point - mo._point
        End If
    End Function


End Class

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