WebService call under Xamarin.Forms returns incomplete result

Question

Namespace.References- A PCL project Profile 78containing a link to a web service ( asmx). Because the profile does not support the entire stack of the service model, only asynchronous methods are generated in the APM style.

When GetLoggedInUsercalled from a traditional C # console project (referred to as a library), the service call succeeds.

However, when making the same service call from the project, Xamarin.Droid / Xamarin.Formsthe service call succeeds, but the answer is incomplete. The response only fills the value IsSuccessfulfound in the base class of the response.

See below

public partial class GetUserResponse : GatewayResponseBase {

    private User signedInUserField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute(Order=0)]
    public User SignedInUser {
        get {
            return this.signedInUserField;
        }
        set {
            this.signedInUserField = value;
            this.RaisePropertyChanged("SignedInUser");
        }
    }
} 

public abstract partial class GatewayResponseBase : object, System.ComponentModel.INotifyPropertyChanged {

    private bool isSuccessfulField;

    private string messageField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute(Order=0)]
    public bool IsSuccessful {
        get {
            return this.isSuccessfulField;
        }
        set {
            this.isSuccessfulField = value;
            this.RaisePropertyChanged("IsSuccessful");
        }
    }

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute(Order=1)]
    public string Message {
        get {
            return this.messageField;
        }
        set {
            this.messageField = value;
            this.RaisePropertyChanged("Message");
        }
    }

    public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

    protected void RaisePropertyChanged(string propertyName) {
        System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
        if ((propertyChanged != null)) {
            propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
        }
    }
}

I call the service as follows

const string username = "user";
const string password = "pass";
var response = Task<GetUserResponse>.Factory.FromAsync(Service.BeginGetLoggedInUser,
                                                               Service.EndGetLoggedInUser,
                                                               username, password, null).Result;

response.SignedInUser . response.SignedInUser null;

var service = new SoapClient();
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
service.Endpoint.Address = new EndpointAddress("https://address/Service.asmx");
var Service = (IService) service;

, (.. ).

service.GetServicesCompleted += (sender, args) =>
{
   var value = args.Result;
};

service.GetServicesAsync(username, password);

, .