[VB2010 WCF] lettura System.Xml.XmlNode

[[_Kilckk_]]

Sto uscendo pazzo... come posso leggere i valori che ritorno da una function come questa???

        Public Function GetNews(ByVal n As String) As System.Xml.XmlNode
            Return MyBase.Channel.GetNews(n)
        End Function

ho provato a trattarlo come un xml ma va solo in errore

ho provato varie tecniche per l'xml e questo è l'ultimo errore che mi è ritornato

Error	8	Overload resolution failed because no accessible 'Load' can be called with these arguments:
    'Public Overridable Sub Load(reader As System.Xml.XmlReader)': Value of type 'System.Xml.XmlNode' cannot be converted to 'System.Xml.XmlReader'.
    'Public Overridable Sub Load(txtReader As System.IO.TextReader)': Value of type 'System.Xml.XmlNode' cannot be converted to 'System.IO.TextReader'.
    'Public Overridable Sub Load(inStream As System.IO.Stream)': Value of type 'System.Xml.XmlNode' cannot be converted to 'System.IO.Stream'.
    'Public Overridable Sub Load(filename As String)': Value of type 'System.Xml.XmlNode' cannot be converted to 'String'.

Mi dice persino di trasformarla in una string.... ma come faccio se io ho la necessità di recuperare alcuni valori?

Grazie.

[cyanuro]

Con la funzione così da sola non si capisce proprio niente.
Quello che devi mostrare è tutto il blocco dall'apertura del file xml alla lettura e ovviamente la funzione.

[[_Kilckk_]]

sto studiando le webservices quindi il codice che sto utilizzando è questo:

http://webservices.dotnethell.it/WSContents.asmx

Namespace dotnethell
    
    <System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0"),  _
     System.ServiceModel.ServiceContractAttribute([Namespace]:="http://webservices.dotnethell.it/WSContents", ConfigurationName:="dotnethell.WSContentsSoap")>  _
    Public Interface WSContentsSoap
        
        <System.ServiceModel.OperationContractAttribute(Action:="http://webservices.dotnethell.it/WSContents/GetAllTips", ReplyAction:="*"),  _
         System.ServiceModel.XmlSerializerFormatAttribute(SupportFaults:=true)>  _
        Function GetAllTips(ByVal userid As String, ByVal password As String) As System.Xml.XmlNode
        
        <System.ServiceModel.OperationContractAttribute(Action:="http://webservices.dotnethell.it/WSContents/GetArticles", ReplyAction:="*"),  _
         System.ServiceModel.XmlSerializerFormatAttribute(SupportFaults:=true)>  _
        Function GetArticles(ByVal n As String) As System.Xml.XmlNode
        
        <System.ServiceModel.OperationContractAttribute(Action:="http://webservices.dotnethell.it/WSContents/GetNews", ReplyAction:="*"),  _
         System.ServiceModel.XmlSerializerFormatAttribute(SupportFaults:=true)>  _
        Function GetNews(ByVal n As String) As System.Xml.XmlNode
        
        <System.ServiceModel.OperationContractAttribute(Action:="http://webservices.dotnethell.it/WSContents/GetTips", ReplyAction:="*"),  _
         System.ServiceModel.XmlSerializerFormatAttribute(SupportFaults:=true)>  _
        Function GetTips(ByVal n As String) As System.Xml.XmlNode
    End Interface
    
    <System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")>  _
    Public Interface WSContentsSoapChannel
        Inherits dotnethell.WSContentsSoap, System.ServiceModel.IClientChannel
    End Interface
    
    <System.Diagnostics.DebuggerStepThroughAttribute(),  _
     System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")>  _
    Partial Public Class WSContentsSoapClient
        Inherits System.ServiceModel.ClientBase(Of dotnethell.WSContentsSoap)
        Implements dotnethell.WSContentsSoap
        
        Public Sub New()
            MyBase.New
        End Sub
        
        Public Sub New(ByVal endpointConfigurationName As String)
            MyBase.New(endpointConfigurationName)
        End Sub
        
        Public Sub New(ByVal endpointConfigurationName As String, ByVal remoteAddress As String)
            MyBase.New(endpointConfigurationName, remoteAddress)
        End Sub
        
        Public Sub New(ByVal endpointConfigurationName As String, ByVal remoteAddress As System.ServiceModel.EndpointAddress)
            MyBase.New(endpointConfigurationName, remoteAddress)
        End Sub
        
        Public Sub New(ByVal binding As System.ServiceModel.Channels.Binding, ByVal remoteAddress As System.ServiceModel.EndpointAddress)
            MyBase.New(binding, remoteAddress)
        End Sub
        
        Public Function GetAllTips(ByVal userid As String, ByVal password As String) As System.Xml.XmlNode Implements dotnethell.WSContentsSoap.GetAllTips
            Return MyBase.Channel.GetAllTips(userid, password)
        End Function
        
        Public Function GetArticles(ByVal n As String) As System.Xml.XmlNode Implements dotnethell.WSContentsSoap.GetArticles
            Return MyBase.Channel.GetArticles(n)
        End Function
        
        Public Function GetNews(ByVal n As String) As System.Xml.XmlNode Implements dotnethell.WSContentsSoap.GetNews
            Return MyBase.Channel.GetNews(n)
        End Function
        
        Public Function GetTips(ByVal n As String) As System.Xml.XmlNode Implements dotnethell.WSContentsSoap.GetTips
            Return MyBase.Channel.GetTips(n)
        End Function
    End Class
End Namespace

e l'xml

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <GetNews xmlns="http://webservices.dotnethell.it/WSContents">
      <n>string</n>
    </GetNews>
  </soap:Body>
</soap:Envelope>

nella form

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim prova As New dotnethell.WSContentsSoapClient
        prova.GetNews(1) ' A questo punto non so come poter leggere il dato
    End Sub

Come dovrei trattare i dati che ricevo??? Ho capito che vanno usate come normali function ma non capisco come devo leggere in particolare quel dato di ritorno.

Grazie.

[tas]

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