OperationContext(IContextChannel) OperationContext(IContextChannel) OperationContext(IContextChannel) OperationContext(IContextChannel) Constructor

Definition

Initializes a new instance of the OperationContext class that uses the specified IContextChannel in a client application.

public:
 OperationContext(System::ServiceModel::IContextChannel ^ channel);
public OperationContext (System.ServiceModel.IContextChannel channel);
new System.ServiceModel.OperationContext : System.ServiceModel.IContextChannel -> System.ServiceModel.OperationContext
Public Sub New (channel As IContextChannel)

Parameters

Exceptions

Examples

The following example shows how to use the OperationContextScope to create a new context in a client application in order to add a custom header to the outgoing message.

SampleServiceClient wcfClient = new SampleServiceClient(new InstanceContext(this));
try
{
  using (OperationContextScope scope = new OperationContextScope(wcfClient.InnerChannel))
  {
    MessageHeader header
      = MessageHeader.CreateHeader(
      "Service-Bound-CustomHeader",
      "http://Microsoft.WCF.Documentation",
      "Custom Happy Value."
      );
    OperationContext.Current.OutgoingMessageHeaders.Add(header);

    // Making calls.
    Console.WriteLine("Enter the greeting to send: ");
    string greeting = Console.ReadLine();

    //Console.ReadLine();
    header = MessageHeader.CreateHeader(
        "Service-Bound-OneWayHeader",
        "http://Microsoft.WCF.Documentation",
        "Different Happy Value."
      );
    OperationContext.Current.OutgoingMessageHeaders.Add(header);

    // One-way
    wcfClient.Push(greeting);
    this.wait.WaitOne();

    // Done with service. 
    wcfClient.Close();
    Console.WriteLine("Done!");
    Console.ReadLine();
  }
}
catch (TimeoutException timeProblem)
{
  Console.WriteLine("The service operation timed out. " + timeProblem.Message);
  Console.ReadLine();
  wcfClient.Abort();
}
catch (CommunicationException commProblem)
{
  Console.WriteLine("There was a communication problem. " + commProblem.Message);
  Console.ReadLine();
  wcfClient.Abort();
}
Dim wcfClient As New SampleServiceClient(New InstanceContext(Me))
Try
  Using scope As New OperationContextScope(wcfClient.InnerChannel)
               Dim header As MessageHeader = MessageHeader.CreateHeader("Service-Bound-CustomHeader", _
                                   "http://Microsoft.WCF.Documentation", "Custom Happy Value.")
	OperationContext.Current.OutgoingMessageHeaders.Add(header)

	' Making calls.
	Console.WriteLine("Enter the greeting to send: ")
	Dim greeting As String = Console.ReadLine()

	'Console.ReadLine();
               header = MessageHeader.CreateHeader("Service-Bound-OneWayHeader", _
                                                   "http://Microsoft.WCF.Documentation", "Different Happy Value.")
	OperationContext.Current.OutgoingMessageHeaders.Add(header)

	' One-way
	wcfClient.Push(greeting)
	Me.wait.WaitOne()

	' Done with service. 
	wcfClient.Close()
	Console.WriteLine("Done!")
	Console.ReadLine()
  End Using
Catch timeProblem As TimeoutException
  Console.WriteLine("The service operation timed out. " & timeProblem.Message)
  Console.ReadLine()
  wcfClient.Abort()
Catch commProblem As CommunicationException
  Console.WriteLine("There was a communication problem. " & commProblem.Message)
  Console.ReadLine()
  wcfClient.Abort()
End Try

Remarks

Use the OperationContext constructor to create a new operation context within the scope of which the proxy is associated in order to modify outbound items such as headers.

Applies to