how to consume wcf service contract with nested datacontract class

Question

How to get data from nested datacontract Itinerary class?
Code:

[ServiceContract]
[XmlSerializerFormat]
public interface IStockService
{

[OperationContract]
GetAirfareRequest GetAirfare(GetAirfareRequest request);
}
[MessageContract]
[KnownType(typeof(Itinerary))]
public class GetAirfareRequest
{
[MessageHeader(Name = "h1")] public DateTime date;
[MessageBodyMember] public Itinerary itinerary;
}
[DataContract]
public class Itinerary
{
[DataMember] public string fromCity;
[DataMember] public string toCity;
}
public class StockService : IStockService
{
public GetAirfareRequest GetAirfare(GetAirfareRequest request)
{
return request;
}
}
console app client side:

using System.Linq;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Text;
using System.Threading.Tasks;
using Client.ServiceReference1;

namespace Client
{
internal class Program
{
static void Main(string[] args)
{
StockServiceClient client = new StockServiceClient();
try
{
GetAirfareRequest getAirfareRequest = new GetAirfareRequest()
{
h1 = DateTime.Now, itinerary = (how to get toCity?), (how to get fromCity?)
};
GetAirfareRequest response = ((IStockService)client).GetAirfare(getAirfareRequest);
Console.WriteLine(response.ToString());
}
catch (TimeoutException timeProblem)
{
Console.WriteLine("The service operation timed out. " + timeProblem.Message);
Console.ReadLine();
client.Abort();
}
catch (FaultException unknownFault)
{
Console.WriteLine("An unknown exception was received. " + unknownFault.Message);
Console.ReadLine();
client.Abort();
}
catch (CommunicationException commProblem)
{
Console.WriteLine("There was a communication problem. " + commProblem.Message + commProblem.StackTrace);
Console.ReadLine();
client.Abort();
}
}
}
}

Answer 1

Hi @Juraj Mikulas ,
I guess you want to get ii data, you can do it directly.

try  
            {  
                Itinerary ii = new Itinerary()  
                {  
                    toCity = "ddd",  
                    fromCity = "ff"  
  
                };  
                GetAirfareRequest getAirfareRequest = new GetAirfareRequest()  
                {  
                    itinerary = ii,  
                };      
                 
            }  

https://learn.microsoft.com/en-us/dotnet/api/system.servicemodel.messagebodymemberattribute?view=dotnet-plat-ext-6.0
Best regards,
Lan Huang

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Answer 2

thank you. Visual studio shows mistake. See it on picture.

Answer 3

Thank you, I tried. VS shows only "GetAirfareRequest" in console.

Answer 4

Thank you for advice. Yes, there is value bud not in soap envelope. I think there is not incorporated client to retrieve and send data. May be data sould be given on service side. I will try work on it latter.