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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();
   }

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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