OperationContext.OutgoingMessageHeaders 属性
定义
获取活动 OperationContext 的传出消息头。Gets the outgoing message headers for the active OperationContext.
public:
property System::ServiceModel::Channels::MessageHeaders ^ OutgoingMessageHeaders { System::ServiceModel::Channels::MessageHeaders ^ get(); };
public System.ServiceModel.Channels.MessageHeaders OutgoingMessageHeaders { get; }
member this.OutgoingMessageHeaders : System.ServiceModel.Channels.MessageHeaders
Public ReadOnly Property OutgoingMessageHeaders As MessageHeaders
属性值
一个 MessageHeaders 对象,包含活动 OperationContext 的出站消息头。A MessageHeaders object that contains outbound message headers for the active OperationContext.
示例
下面的示例演示如何使用 OperationContextScope 在客户端应用程序中创建新的上下文以向传出消息添加自定义标头。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
注解
使用此属性添加由 WCF 客户端对象发送的服务操作或请求标头发送的答复标头。Use this property to add reply headers that are sent by a service operation or request headers that are sent by a WCF client object.