OperationContext.IncomingMessageHeaders Property

 

Gets the incoming message headers for the OperationContext.

Namespace:   System.ServiceModel
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public MessageHeaders IncomingMessageHeaders { get; }

Property Value

Type: System.ServiceModel.Channels.MessageHeaders

A MessageHeaders object that contains the incoming message headers.

Use this property to inspect or modify the request headers that arrive at a service operation or reply headers that arrive at a client proxy.

The following code example shows how to read the incoming message headers in a service operation.

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 == true)
      {
          Console.WriteLine("IsReferenceParameter header detected: " + h.ToString());
      }
    }
    Console.ResetColor();
  }

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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