ServiceDescription.CanRead(XmlReader) Metodo

Definizione

Spazio dei nomi:

System.Web.Services.Description

Assembly:

System.Web.Services.dll

Ottiene un valore che indica se un oggetto XmlReader rappresenta un file del linguaggio di descrizione dei servizi Web (WSDL, Web Services Description Language) valido che possa essere analizzato.

public:
 static bool CanRead(System::Xml::XmlReader ^ reader);

public static bool CanRead (System.Xml.XmlReader reader);

static member CanRead : System.Xml.XmlReader -> bool

Public Shared Function CanRead (reader As XmlReader) As Boolean

Parametri

reader

XmlReader

Oggetto XmlReader.

Restituisce

Boolean

true se l'oggetto XmlSerializer può riconoscere il nodo in cui si trova l'oggetto XmlReader; in caso contrario, false.

Esempio

// Creates an Operation for a PortType.
Operation^ CreateOperation( String^ operationName, String^ inputMessage, String^ outputMessage, String^ targetNamespace )
{
   Operation^ myOperation = gcnew Operation;
   myOperation->Name = operationName;
   OperationMessage^ input = dynamic_cast<OperationMessage^>(gcnew OperationInput);
   input->Message = gcnew XmlQualifiedName( inputMessage,targetNamespace );
   OperationMessage^ output = dynamic_cast<OperationMessage^>(gcnew OperationOutput);
   output->Message = gcnew XmlQualifiedName( outputMessage,targetNamespace );
   myOperation->Messages->Add( input );
   myOperation->Messages->Add( output );
   return myOperation;
}

int main()
{
   String^ myWsdlFileName = "MyWsdl_CS.wsdl";
   XmlTextReader^ myReader = gcnew XmlTextReader( myWsdlFileName );
   if ( ServiceDescription::CanRead( myReader ) )
   {
      ServiceDescription^ myDescription = ServiceDescription::Read( myWsdlFileName );

      // Remove the PortType at index 0 of the collection.
      PortTypeCollection^ myPortTypeCollection = myDescription->PortTypes;
      myPortTypeCollection->Remove( myDescription->PortTypes[ 0 ] );

      // Build a new PortType.
      PortType^ myPortType = gcnew PortType;
      myPortType->Name = "Service1Soap";
      Operation^ myOperation = CreateOperation( "Add", "s0:AddSoapIn", "s0:AddSoapOut", "" );
      myPortType->Operations->Add( myOperation );

      // Add a new PortType to the PortType collection of 
      // the ServiceDescription.
      myDescription->PortTypes->Add( myPortType );
      myDescription->Write( "MyOutWsdl.wsdl" );
      Console::WriteLine( "New WSDL file generated successfully." );
   }
   else
   {
      Console::WriteLine( "This file is not a WSDL file." );
   }
}

static void Main()
{
   string myWsdlFileName ="MyWsdl_CS.wsdl";
   XmlTextReader myReader = new XmlTextReader(myWsdlFileName);
   if (ServiceDescription.CanRead(myReader))
   {
      ServiceDescription myDescription =
         ServiceDescription.Read(myWsdlFileName);

      // Remove the PortType at index 0 of the collection.
      PortTypeCollection myPortTypeCollection =
         myDescription.PortTypes;
      myPortTypeCollection.Remove(myDescription.PortTypes[0]);

      // Build a new PortType.
      PortType myPortType = new PortType();
      myPortType.Name = "Service1Soap";
      Operation myOperation =
         CreateOperation("Add","s0:AddSoapIn","s0:AddSoapOut","");
      myPortType.Operations.Add(myOperation);

      // Add a new PortType to the PortType collection of
      // the ServiceDescription.
      myDescription.PortTypes.Add(myPortType);

      myDescription.Write("MyOutWsdl.wsdl");
      Console.WriteLine("New WSDL file generated successfully.");
   }
   else
   {
      Console.WriteLine("This file is not a WSDL file.");
   }
}
// Creates an Operation for a PortType.
public static Operation CreateOperation(string operationName,
   string inputMessage, string outputMessage, string targetNamespace)
{
   Operation myOperation = new Operation();
   myOperation.Name = operationName;
   OperationMessage input = (OperationMessage) new OperationInput();
   input.Message = new XmlQualifiedName(inputMessage,targetNamespace);
   OperationMessage output = (OperationMessage) new OperationOutput();
   output.Message = new XmlQualifiedName(outputMessage,targetNamespace);
   myOperation.Messages.Add(input);
   myOperation.Messages.Add(output);
   return myOperation;
}

Shared Sub Main()
   Dim myWsdlFileName As String = "MyWsdl_VB.wsdl"
   Dim myReader As New XmlTextReader(myWsdlFileName)
   If ServiceDescription.CanRead(myReader) Then
      
      Dim myDescription As ServiceDescription = _
         ServiceDescription.Read(myWsdlFileName)

      ' Remove the PortType at index 0 of the collection.
      Dim myPortTypeCollection As PortTypeCollection = _
         myDescription.PortTypes
      myPortTypeCollection.Remove(myDescription.PortTypes(0))

      ' Build a new PortType.
      Dim myPortType As New PortType()
      myPortType.Name = "Service1Soap"
      Dim myOperation As Operation = _
         CreateOperation("Add", "s0:AddSoapIn", "s0:AddSoapOut", "")
      myPortType.Operations.Add(myOperation)

      ' Add a new PortType to the PortType collection of 
      ' the ServiceDescription.
      myDescription.PortTypes.Add(myPortType)
      
      myDescription.Write("MyOutWsdl.wsdl")
      Console.WriteLine("New WSDL file generated successfully.")
   Else
      Console.WriteLine("This file is not a WSDL file.")
   End If
End Sub
 
' Creates an Operation for a PortType.
Public Shared Function CreateOperation(operationName As String, _
   inputMessage As String, outputMessage As String, _
   targetNamespace As String) As Operation

   Dim myOperation As New Operation()
   myOperation.Name = operationName
   Dim input As OperationMessage = _
      CType(New OperationInput(), OperationMessage)
   input.Message = New XmlQualifiedName(inputMessage, targetNamespace)
   Dim output As OperationMessage = _
      CType(New OperationOutput(), OperationMessage)
   output.Message = New XmlQualifiedName(outputMessage, targetNamespace)
   myOperation.Messages.Add(input)
   myOperation.Messages.Add(output)
   Return myOperation
End Function 'CreateOperation