OperationContext.IncomingMessageHeaders Properti

Definisi

Ruang nama:

System.ServiceModel

Rakitan:

System.ServiceModel.dll, System.ServiceModel.Primitives.dll

Paket:

System.ServiceModel.Primitives v10.0.652802

Sumber:

OperationContext.cs

Mendapatkan header pesan masuk untuk 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

Nilai Properti

MessageHeaders

Objek MessageHeaders yang berisi header pesan masuk.

Contoh

Contoh kode berikut menunjukkan cara membaca header pesan masuk dalam operasi layanan.

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

Keterangan

Gunakan properti ini untuk memeriksa atau mengubah header permintaan yang tiba di operasi layanan atau header balasan yang tiba di proksi klien.