How I change soap xml web service in c#?

Question

I used webservice preferences cs code. I have soap xml web service request.

 
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Answer 1

I finally found how to do it. Firstly I created EnvelopeNamespaceMessage class.

EnvelopeNamespaceMessage.cs

  public class EnvelopeNamespaceMessage : Message
    {
        private readonly Message message;

        public string[] EnvelopeNamespaces { get; set; }

        public EnvelopeNamespaceMessage(Message message)
        {
            this.message = message;
        }

        public override MessageHeaders Headers
        {
            get { return this.message.Headers; }
        }

        public override MessageProperties Properties
        {
            get { return this.message.Properties; }
        }

        public override MessageVersion Version
        {
            get { return this.message.Version; }
        }

        protected override void OnWriteStartBody(XmlDictionaryWriter writer)
        {
            writer.WriteStartElement("Body", "http://schemas.xmlsoap.org/soap/envelope/");
        }

        protected override void OnWriteBodyContents(XmlDictionaryWriter writer)
        {
            this.message.WriteBodyContents(writer);
        }

        protected override void OnWriteStartEnvelope(XmlDictionaryWriter writer)
        {
            writer.WriteStartElement("soapenv", "Envelope", "http://schemas.xmlsoap.org/soap/envelope/");

            if (EnvelopeNamespaces != null)
            {
                foreach (string ns in EnvelopeNamespaces)
                {
                    var tokens = ns.Split(new char[] { ':' }, 2);
                    writer.WriteAttributeString("xmlns", tokens[0], null, tokens[1]);
                }
            }
        }
    }

    public class EnvelopeNamespaceMessageFormatter : IClientMessageFormatter
    {
        private readonly IClientMessageFormatter formatter;

        public string[] EnvelopeNamespaces { get; set; }

        public EnvelopeNamespaceMessageFormatter(IClientMessageFormatter formatter)
        {
            this.formatter = formatter;
        }

        public Message SerializeRequest(MessageVersion messageVersion, object[] parameters)
        {
            var message = this.formatter.SerializeRequest(messageVersion, parameters);
            return new EnvelopeNamespaceMessage(message) { EnvelopeNamespaces = EnvelopeNamespaces };
        }

        public object DeserializeReply(Message message, object[] parameters)
        {
            return this.formatter.DeserializeReply(message, parameters);
        }
    }


    [AttributeUsage(AttributeTargets.Method)]
    public class EnvelopeNamespacesAttribute : Attribute, IOperationBehavior
    {
        public string[] EnvelopeNamespaces { get; set; }

        public void AddBindingParameters(OperationDescription operationDescription,
            BindingParameterCollection bindingParameters)
        {
        }

        public void ApplyClientBehavior(OperationDescription operationDescription, ClientOperation clientOperation)
        {
            //var serializerBehavior = operationDescription.Behaviors.Find<DataContractSerializerOperationBehavior>();
            IOperationBehavior serializerBehavior = operationDescription.Behaviors.Find<XmlSerializerOperationBehavior>();
            if (serializerBehavior == null)
                serializerBehavior = operationDescription.Behaviors.Find<DataContractSerializerOperationBehavior>();

            if (clientOperation.Formatter == null)
                serializerBehavior.ApplyClientBehavior(operationDescription, clientOperation);

            IClientMessageFormatter innerClientFormatter = clientOperation.Formatter;
            clientOperation.Formatter = new EnvelopeNamespaceMessageFormatter(innerClientFormatter)
            {
                EnvelopeNamespaces = EnvelopeNamespaces
            };
        }

        public void ApplyDispatchBehavior(OperationDescription operationDescription, DispatchOperation dispatchOperation)
        {
        }

        public void Validate(OperationDescription operationDescription)
        {
        }
    }

And then I opened proxy.cs class and I add EnvelopeNamespaces attribute at method.

[System.ServiceModel.ServiceContractAttribute(Namespace = "http://ws.xyz.com/", ConfigurationName = "WebServiceImpl")]
    //[ServiceContract(Namespace = "")]
    public interface WebServiceImpl
    {
 // CODEGEN: 
        [System.ServiceModel.OperationContractAttribute(Action = "http://ws.xyz.com/WebServiceImpl/methodRequest", ReplyAction = "http://ws.xyz.com/WebServiceImpl/methodResponse")]
        [System.ServiceModel.XmlSerializerFormatAttribute()]
        [EnvelopeNamespaces(EnvelopeNamespaces = new string[] {
        "soapenv:http://schemas.xmlsoap.org/soap/envelope/",
        "soapenc:http://schemas.xmlsoap.org/soap/encoding/",
        "xsd:http://www.w3.org/2001/XMLSchema",
        "xsi:http://www.w3.org/2001/XMLSchema-instance",
        "ws:http://ws.xyz.com/"
         })]
   methodResponse method(methodRequest request);

    [System.ServiceModel.OperationContractAttribute(Action = "http://ws.xyz.com/WebServiceImpl/methodRequest", ReplyAction = "http://ws.xyz.com/WebServiceImpl/methodResponse")]
    System.Threading.Tasks.Task<methodResponse> methodAsync(methodRequest request);

This is helper link.

https://weblog.west-wind.com/posts/2016/Apr/02/Custom-Message-Formatting-in-WCF-to-add-all-Namespaces-to-the-SOAP-Envelope#ClientMessageFormatter