OperationContext.IncomingMessageHeaders Propiedad

Definición

Espacio de nombres:

System.ServiceModel

Ensamblado:

System.ServiceModel.Primitives.dll

Paquete:

System.ServiceModel.Primitives v8.1.0

Source:

OperationContext.cs

Obtiene los encabezados de mensaje entrante para OperationContext.

public:
 property System::ServiceModel::Channels::MessageHeaders ^ IncomingMessageHeaders { System::ServiceModel::Channels::MessageHeaders ^ get(); };

public System.ServiceModel.Channels.MessageHeaders IncomingMessageHeaders { get; }

member this.IncomingMessageHeaders : System.ServiceModel.Channels.MessageHeaders

Public ReadOnly Property IncomingMessageHeaders As MessageHeaders

Valor de propiedad

MessageHeaders

Un objeto MessageHeaders que contiene los encabezados de mensaje entrante.

Ejemplos

El ejemplo de código siguiente muestra cómo leer los encabezados de mensaje entrante en una operación de servicio.

class SampleService : ISampleService
{
#region ISampleService Members

  public void Push(string msg)
  {
      Console.WriteLine("Proxy: " + msg);
    this.WriteHeaders(OperationContext.Current.IncomingMessageHeaders);
    MessageHeader outBoundHeader
      = MessageHeader.CreateHeader(
        "Client-Bound-One-Way-Header",
        "http://Microsoft.WCF.Documentation",
        "Custom Outbound Header"
      );
    OperationContext.Current.OutgoingMessageHeaders.Add(outBoundHeader);
    Console.ForegroundColor = ConsoleColor.Red;
    Console.WriteLine("OutgoingHeader:");
    Console.Write("\t");
    Console.ForegroundColor = ConsoleColor.Blue;
    Console.WriteLine(outBoundHeader.ToString());
    Console.ResetColor();
    OperationContext.Current.GetCallbackChannel<IClientCallbackContract>().PushBack("Here's something to examine in response.");
  }

  void WriteHeaders(MessageHeaders headers)
  {
    Console.ForegroundColor = ConsoleColor.Red;
    Console.WriteLine("IncomingHeader:");
    Console.ForegroundColor = ConsoleColor.Blue;
    foreach (MessageHeaderInfo h in headers)
    {
      if (!h.Actor.Equals(String.Empty))
        Console.WriteLine("\t" + h.Actor);
      Console.ForegroundColor = ConsoleColor.White;
      Console.WriteLine("\t" + h.Name);
      Console.ForegroundColor = ConsoleColor.Blue;
      Console.WriteLine("\t" + h.Namespace);
      Console.WriteLine("\t" + h.Relay);
      if (h.IsReferenceParameter)
      {
          Console.WriteLine("IsReferenceParameter header detected: " + h.ToString());
      }
    }
    Console.ResetColor();
  }

Friend Class SampleService
    Implements ISampleService
#Region "ISampleService Members"

  Public Sub Push(ByVal msg As String) Implements ISampleService.Push
       Console.WriteLine("Proxy: " & msg)
    Me.WriteHeaders(OperationContext.Current.IncomingMessageHeaders)
    Dim outBoundHeader As MessageHeader = MessageHeader.CreateHeader("Client-Bound-One-Way-Header", "http://Microsoft.WCF.Documentation", "Custom Outbound Header")
    OperationContext.Current.OutgoingMessageHeaders.Add(outBoundHeader)
    Console.ForegroundColor = ConsoleColor.Red
    Console.WriteLine("OutgoingHeader:")
    Console.Write(vbTab)
    Console.ForegroundColor = ConsoleColor.Blue
    Console.WriteLine(outBoundHeader.ToString())
    Console.ResetColor()
    OperationContext.Current.GetCallbackChannel(Of IClientCallbackContract)().PushBack("Here's something to examine in response.")
  End Sub

  Private Sub WriteHeaders(ByVal headers As MessageHeaders)
    Console.ForegroundColor = ConsoleColor.Red
    Console.WriteLine("IncomingHeader:")
    Console.ForegroundColor = ConsoleColor.Blue
          For Each h In headers
              If Not h.Actor.Equals(String.Empty) Then
                  Console.WriteLine(vbTab & h.Actor)
              End If
              Console.ForegroundColor = ConsoleColor.White
              Console.WriteLine(vbTab & h.Name)
              Console.ForegroundColor = ConsoleColor.Blue
              Console.WriteLine(vbTab & h.Namespace)
              Console.WriteLine(vbTab & h.Relay)
              If h.IsReferenceParameter = True Then
                  Console.WriteLine("IsReferenceParameter header detected: " & h.ToString())
              End If
          Next h
    Console.ResetColor()
  End Sub

Comentarios

Utilice esta propiedad para inspeccionar o modificar los encabezados de la solicitud que llegan a una operación de servicio o encabezados de respuesta que llegan a un proxy de cliente.