在WCF客户端中修改SOAP标头Mustunderstand属性

using System;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Dispatcher;

namespace WCFClient
{
    class Program
    {
        static void Main(string[] args)
        {
            // 创建自定义MessageHeader
            MyMessageHeader myHeader = new MyMessageHeader();

            // 创建客户端通道工厂
            ChannelFactory<IService> factory = new ChannelFactory<IService>("myEndpoint");

            // 添加自定义MessageHeader
            MessageHeader<MyMessageHeader> headerMessage = MessageHeader.CreateHeader("myHeader", "http://tempuri.org", myHeader);
            OperationContext.Current.OutgoingMessageHeaders.Add(headerMessage);

            // 创建客户端通道
            IService client = factory.CreateChannel();

            // 调用服务
            client.MyServiceMethod();

            // 关闭通道
            factory.Close();
        }
    }

    [MessageContract]
    public class MyMessageHeader
    {
        [MessageHeader(MustUnderstand = true)]
        public string MyHeaderValue { get; set; }
    }
}