ServiceDescription.CanRead(XmlReader) 方法

定義

命名空間:

System.Web.Services.Description

組件:

System.Web.Services.dll

取得值，指出 XmlReader 是否表示可以剖析的有效 Web 服務描述語言 (WSDL) 檔案。

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

參數

reader

XmlReader

XmlReader。

傳回

Boolean

如果 XmlSerializer 可以辨識 XmlReader 放置的所在節點，則為 true，否則為 false。

範例

// 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