How to get wcf response in XML format which is referenced through service reference in class library project

Question

// Created obj for wcf service
ServiceSummary.ImageService.ManagerServiceClient obj1 = new ServiceSummary.ImageService.ManagerServiceClient(); 

// Forming a request body
var request = new ImageService.GetImageRequest
                {
                    UserContextData = new ImageService.UserContextData
                    {
                        Country = Country.ToUpper(),
                        Region = Region.ToUpper()
                    },
                };

// Invoking GetImageResponse and storing result in response variable
var response = obj1.GetImageResponse(request);

The response is returned of type class - how to get the response in XML format instead?

Answer 1

I am a little confused that why we need that primitive XML data. But we can completely get the source message, SOAP message envelops by using IClientMessageInspector.
https://docs.microsoft.com/en-us/dotnet/api/system.servicemodel.dispatcher.iclientmessageinspector?redirectedfrom=MSDN&view=netframework-4.8
Here is an example, assumed that you call the service by using a client proxy.

public class ClientMessageLogger : IClientMessageInspector
    {
        public void AfterReceiveReply(ref Message reply, object correlationState)
        {
            Console.WriteLine(reply);
        }

        public object BeforeSendRequest(ref Message request, IClientChannel channel)
        {
            return null;
        }
    }
    public class CustContractBehaviorAttribute : Attribute, IContractBehavior, IContractBehaviorAttribute
    {
        public Type TargetContract => typeof(IService);

        public void AddBindingParameters(ContractDescription contractDescription, ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
        {
            return;
        }

        public void ApplyClientBehavior(ContractDescription contractDescription, ServiceEndpoint endpoint, ClientRuntime clientRuntime)
        {
            clientRuntime.ClientMessageInspectors.Add(new ClientMessageLogger());
        }

        public void ApplyDispatchBehavior(ContractDescription contractDescription, ServiceEndpoint endpoint, DispatchRuntime dispatchRuntime)
        {
            return;
        }

        public void Validate(ContractDescription contractDescription, ServiceEndpoint endpoint)
        {
            return;
        }
}

Then apply the contract behavior on the automatically generated service contract.

    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
    [System.ServiceModel.ServiceContractAttribute(ConfigurationName="ServiceReference1.IService")]
    [CustContractBehavior]
public interface IService {

Result.

Feel free to let me know if there is anything I can help with.